It’s rolling the dice until you get caught. iTrader: ( 8) California Smog and Catted Downpipes. 5 Things you NEED to know BEFORE buying a DOWNPIPE (F30 BMW, WRX, EVO, Supra, and any Turbo Car!). Any definitive answers on this would be appreciated. So you have quite a while before you have to worry about it. Catless downpipe has horrible emission. Now, if you have someone that can gloss over the visual part of the inspection you can have an aftermarket downpipe that will pass OBDII emissions testing. Or, you can have a 1975 or earlier car and do whatever you'd like because there's no smog test at all. Catless vs High-Flow Catted Downpipes. com Subaru forum. 0L Turbo Powertrain (EJ Series Factory 2. WHen the time comes to re-smogging, swap it back. If your catted downpipe only has 1 CAT (most common), then you will only pass the emissions test for CO, CO2 and HC but fail for NOx. Apr 13, 2019 · Joined May 7, 2018. from what i can gather is that with a cat you can pass the sniffer but not the visual. Which means, CATs are good for the environment but not good for horsepower. Catless DP's are less restrictive as they completely remove the cat from the downpipe. With MHD and JB4 all readiness is cleared except 1, which is allowed to pass the emissions test. The e85 will reduce c02's to an acceptable level that the other 2 cats can handle. However, they are made of very fine honeycomb-like shapes – which increases backpressure significantly. You will probably pass the sniffer test. By no accident there will be the smell of raw fuel / unburnt hydrocarbons. Any definitive answers on this would be appreciated. A note that many people consider the dowpipe and the midpipe to both be one part (even though they are two. Discussion Starter · #1 · Apr 11, 2008. The fact is that no set of downpipes is 50-state legal for street use. Best bet is to keep both of the OEM parts to swap in when the time comes, but you won't have to do so until 2029 (or unless you sell the car before that). Save Share. Its really hit or miss. Does a Catted downpipe add horsepower?. This is a pretty good boost of horsepower from just one performance mod. I love it. AEM makes an intake that is CARB approved, so it's smog approved. 2 years ago. Performance catted downpipes nowadays have been shown to increase horsepower. I had a test pipe with OEM cat heatshields in my old s2000 and it passed CA emissions all the time. Just run a catted DP for the 6 years and if you don't pass, change it back to stock to pass. 5 Things you NEED to know BEFORE buying a DOWNPIPE (F30 BMW, WRX, EVO, Supra, and any Turbo Car!). You can either use tuning to delete this CEL or you can use a mechanical fix. AEM makes an intake that is CARB approved, so it's smog approved. Just go back to stock (including tune) before SMOG and . Can you pass emissions with a down pipe? In short, yes. Your car will not pass emissions testing or inspections without cats. Thats catted or catless, . The registration renewal notice mailed to you by the department will indicate if a smog certification is required. Yes you need a tune. However, in exchange for that power, catless downpipe is not legal and will not pass the. What's better Catted or Catless downpipes? Catted downpipe provides horsepower gain but not as much as catless downpipe. This downpipe is the result of countless hours. Re: Cobb Catted Downpipe Smog FL4T. However, catless downpipe options come with a couple of downsides. A typical aftermarket downpipe won’t pass visual inspection at the Smog Shop. In terms of passing emissions, does it make a difference if I go with. The high flow cats are $139. This downpipe is the result of countless hours. horsepower, and increased throttle response with cleaner emissions than cat-delete. Any definitive answers on this would be appreciated. This is the same MPx downpipe we package with our complete exhausts and these are made with 304 stainless steel. Reactions: squiggy and Flippercon. com Free App Learn something new all the time. horsepower, and increased throttle response with cleaner emissions than cat-delete. Gotta run a catted downpipe, flash back to stage I and then get tested, and flash back to stage II. Catless downpipe provides even more horsepower gain than catted downpipe. Replacing these with our single high-flow unit will dramatically improve performance potential while maintaining the use of a catalytic converter. If you get a catless version, then the vehicle will emit a noticeable odor. Do you guys think my car will pass inspection(emission test)?. I have the thermal r&d exhaust with front pipe. You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. This depends on the CAT that comes with the downpipe. Louder exhaust sound. WHen the time comes to re-smogging, swap it back. Car is FBO too. Now if you are catless and the tech does a visual inspection, he could fail you. Do Catted downpipes smell? They do smell a bit though, and I have secondary cats. Jul 18, 2021 · Catless downpipe does not come with CAT. Aftermarket cats are junk and only a matter of time before you throw a cel and regret not going catless in the first place for more power. Some say the catted down pipe will pass the OBD2. @PRL Motorsports. You will fail all the emissions tests - whether it's visual, OBD2 or sniffer. Would like to hear from those with a DP about experiences at your smog shop. The exhaust gases from your car will be toxic both to the environment and yourself. My experience. pharo said: i have the same question about cali. 2002-2007 Subaru WRX, 2004-2007 Subaru WRX STI, and 2004-2008 Subaru Forester XT Catted Downpipe by GrimmSpeed A downpipe is one of the first modifications that should be done on your car, as the OEM downpipe contains two very restrictive catalytic converters. Would like to hear from those with a DP about experiences at your smog shop. You can use that intake no problem. Sent from AutoGuide. Remove air intake scoop and intake tube. May 2, 2017 · Will I pass smog with Cobb catted downpipes? Welcome to NASIOC - The world's largest online community for Subaru enthusiasts! Welcome to the NASIOC. Catless DP’s are less restrictive as they completely remove the cat from the downpipe. If you want the flow improvement, get a catted one thats 3" through. Tempe, AZ, USA. So you have quite a while before you have to worry about it. Will it pass with the aftermarket cat? CrazedAntelope Joined Jul 12, 2015 Threads 3 Messages 252 Reaction score 70 Location San Jose, CA. At least mine did. N55 Wagner Performance Downpipe with Cat - E82 135i, E9X 335i N55. As such, a catless Subaru WRX downpipe will result in the best power, torque, and spool. #3 · Jun 1, 2012. An alternative would be to install high flow catted downpipes, however even with high flow catted downpipes the check engine light can still come on and you may not pass emissions inspection. 2002-2007 Subaru WRX, 2004-2007 Subaru WRX STI, and 2004-2008 Subaru Forester XT Catted Downpipe by GrimmSpeed A downpipe is one of the first modifications that should be done on your car, as the OEM downpipe contains two very restrictive catalytic converters. The ARM MK7 GTI Downpipe incorporates a stainless steel flex section between the turbo and mid-pipe mounting point. Honestly the only other catted down pipe option that looks the part would be 034's catted, actually looks like Uni's or other way around. Mandrel bent piping is used to create smooth exhaust flow for dramatic increases in power. These FAQ topics are excerpts from our live chats which we host weekly every Monday at 10AM PST. it will not pass a visual inspection. No downpipe in CA will pass the visual inspection if they look. 8 paź 2006. Has anyone with an aftermarket downpipe been able to pass emissions in this area. Or opt to connect to a 3" aftermarket exhaust system for a full 3" turbo-back setup. As long as they don't know it's aftermarket. Probably a better choice as you are already running a stage 1. Although there are "fixes" that can hide the engine codes and trick emissions tests, generally, you will fail emissions tests with catless downpipes. Aug 9, 2006 · As for the visual, it's up to the smog tech really. I'm looking at getting the catted downpipe but wondering if the bottle neck will be any issue. Some say the catted down pipe will pass the OBD2 CA smog test, some say it won't. Discussion Starter · #1 · Sep 12, 2019. If you live in an area that does advanced smog testing. Feb 1, 2022 · Although, the biggest benefit of opting for high-flow catted downpipes is that your car will still pass emissions testing. 2002-2007 Subaru WRX, 2004-2007 Subaru WRX STI, and 2004-2008 Subaru Forester XT Catted Downpipe by GrimmSpeed A downpipe is one of the first modifications that should be done on your car, as the OEM downpipe contains two very restrictive catalytic converters. The HP and TQ gains will be very very minimal. 5" and rest is 3". In CA you only smog ever other year after 6 years. 2015 car, Nevada smog, for what it's worth. you can pass emissions with a catless downpipe if you do it right . Change tune as needed or just run the stage2 tune with the catted DP for the short time it takes. removing the secondary cats is against federal law, so any state inspection regardless of being part of CARB or not should fail you. Make more power while still passing emissions! Brand: ES#: 3570177 Mfg#: BMEXH018C Qty: Availability: Ships by Aug 4, 2022 Starting at $945. Shorty headers leave the OEM cat-pipes in place, so you're still emissions legal. A catless downpipe is technically illegal as it violated emissions laws. The only thing you would have to do in order to get your car smogged would be to swap to the stock downpipe. Although, the biggest benefit of opting for high-flow catted downpipes is that your car will still pass emissions testing. With high-flow options, you will pass emissions testing and are in compliance with the law. As for the visual, it's up to the smog tech really. Apr 13, 2019 · Joined May 7, 2018. Contact [MENTION=17552] Jarrod@latemodel [/MENTION] for a discount code he could hook you up with. A typical aftermarket downpipe won’t pass visual inspection at the Smog Shop. Considering a catted DP for my MK6 but none are Carb legal. Joined Sep 1, 2014. WHen the time comes to re-smogging, swap it back. Mandrel bent piping is used to create smooth exhaust flow for dramatic increases in power. Swapping out the downpipe is much harder. Myx Joined Mar 6, 2016 Threads 79 Messages 2,151 Reaction score 1,993 Location. The other thing you may or may not know--with a high flow cat the exhaust smells gassy (rich)--this could throw a red flag. Additionally, they do offer a high-flow catted version for those concerned about passing emissions. This is the GrimmSpeed Limited Catted Downpipe. With valves open it is loud, sets my neighbours car alarm off on cold starts, pops and burbles lots more on low speed deceleration and the turbo dump bark noise when you let off quickly is far louder and more frequent. I've looked on this site and I've read some mixed answers. 3L is almost certainly the increased power. Apr 25, 2017 · Anyone have an aftermarket catted downpipe installed and tried to pass smog with it? I'm considering buying one, but I don't wanna have to do the stock-parts-dance when I have to get my car smogged next time. You don't even need to reflash the stock map. The CEL can be avoided with either a tune like JB4 and Cobb or with a DP Fix. With a catted downpipe, CEL may or may not be turned on. Catless downpipe can help you gain 50 additional horsepower with tuning - this is slightly more than a regular catted downpipe. If you have a catted exhaust system and a custome tune you might increase the chance you will pass. Thats catted or catless, . As the name implies, a catted downpipe contains a catalytic converter and a catless downpipe does not. If you have your OEM heatshields attached you will pass even with an aftermarket downpipe as long as you don't have a check engine light. If you are planning to install a downpipe for your daily driver, then you should look for a catted downpipe instead. This listing is for the downpipe with cat for use ONLY with the 2003-2005 Dodge SRT-4 MPx exhaust system. Typically people refer to "stage 2" as an ECU tune and downpipe. Does a Catted downpipe add horsepower?. #3 · Dec 29, 2015. DIRECT replacement, no cutting, welding needed. AEM makes an intake that is CARB approved, so it's smog approved. RPM Retail: $544. Want to install a downpipe on your B58 equipped BMW, but still need to pass emissions? Evolution Racewerks has the answer for you with their B58 Catted downpipe. you can pass emissions with a catless downpipe if you do it right and dont mind breaking "the law". Click on the right Kitty answer or else. Aug 9, 2006 · As for the visual, it's up to the smog tech really. You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. These FAQ topics are excerpts from our live chats which we host weekly every Monday at 10AM PST. It is not accidental that raw fuel / unburnt hydrocarbons will smell. B58 Upgraded Downpipe Performance Benefits. I have stock M4 with mpe no other exhaust mods apart from CG precision valve controller. Buy BMW Downpipes from the best brands like Wagner, CPe and aFe at the lowest price with fast shipping. RallySport Direct proudly carries a great selection of quality aftermarket performance products brought to you by GrimmSpeed. Downpipe, catted is fine and what I run. 2002-2007 Subaru WRX, 2004-2007 Subaru WRX STI, and 2004-2008 Subaru Forester XT Catted Downpipe by GrimmSpeed A downpipe is one of the first modifications that should be done on your car, as the OEM downpipe contains two very restrictive catalytic converters. Feb 1, 2022 · Although, the biggest benefit of opting for high-flow catted downpipes is that your car will still pass emissions testing. These FAQ topics are excerpts from our live chats which we host weekly every Monday at 10AM PST. Jul 16, 2021 · Catted downpipe comes with a less restrictive CAT. I am looking into getting one but I am trying to figure if I can get a certain aftermarket cat and pass. In CA you only smog ever other year after 6 years. A WRX with catless downpipes won’t likely pass emissions. With a catted downpipe, CEL may or may not be turned on. The stock DP is actually very efficient. You can use that intake no problem. it's not that the CAT on a high flow DP is low quality so much as it is a low cell count. You could always make friends with the guy at the emissions center though. The answer is: it depends. 2002-2007 Subaru WRX, 2004-2007 Subaru WRX STI, and 2004-2008 Subaru Forester XT Catted Downpipe by GrimmSpeed A downpipe is one of the first modifications that should be done on your car, as the OEM downpipe contains two very restrictive catalytic converters. AEM makes an intake that is CARB approved, so it's smog approved. Another benefit with IE is you can put a GESI cat like the one UNI uses in the space easily if you want to pass emissions. However, in exchange for that power, catless downpipe is not legal and will not pass the emissions test. These downpipes are not approved for street use in California, New York, or any other area that has adopted CARB emissions standards. Will a car pass smog with no catalytic converter? If the vehicle was built prior to the need for catalytic converters. This piece is between the exhaust manifold and the turbo's hotside. In general, a catted downpipe will help your car pass emissions if it is installed correctly and the cat is in good working condition. High flow catted downpipes are typically more expensive than their catless counterparts and do not offer as much of a benefit. A: While it does have a catalytic converter, this is still changing an emissions control device and is for off-road use only. Catless downpipe does not come with CAT. A WRX with catless downpipes won't likely pass emissions. Change tune as needed or just run the stage2 tune with the catted DP for the short time it takes. Is it easy to install a downpipe? Yes. 3,415 Posts. Mine passed with the cobb catted, you will have to get one welded on or buy a catted DP, not having a catalytic convert is apparently . I am looking into getting one but I am trying to figure if I can get a certain aftermarket cat and pass. * 100 cell Custom high flow metal substrate Cats. Can you pass emissions with a down pipe? In short, yes. I had a test pipe with OEM cat heatshields in my old s2000 and it passed CA emissions all the time. I'm looking at getting the catted downpipe but wondering if the bottle neck will be any issue. OBD code reading, Gas Cap testing, And visual Cat inspection. You can use that intake no problem. My plan is the same as yours but I don't have to do my emissions test for a long ass time. If you know someone, the last two are easy, the first one. If you have a catted exhaust system and a custome tune you might increase the chance you will pass. You'd have to tune it out via ECU tuning. It is throwing the p0139 code [emoji27] even with the defouler. Last Updated: February 15, 2022. The answer is: it depends. Location: USA. Oct 26, 2022 · Will a Catted downpipe pass smog? No, a typical aftermarket downpipe will not pass visual inspection at the Smog Shop. Emissions Testing. Click on the right Kitty answer or else. Catless vs High-Flow Catted Downpipes. Sent from AutoGuide. As long as ur not throwing a CEL, you should be fine. Can you pass smog with catted downpipe. Jan 10, 2022 · Performance catted downpipes nowadays have been shown to increase horsepower. I went with an APR catted DP and APR stage 2 tune. Will a car pass smog with no catalytic converter? If the vehicle was built prior to the need for catalytic converters. It’s rolling the dice until you get caught. The Evolution Racewerks Competition Series Catless Downpipes is constructed from 304 stainless steel, featuring mandrel bent piping. Jan 12, 2018 · Re: Cobb Catted Downpipe Smog FL4T. @PRL Motorsports. I just did this--swapped the downpipes--because of the visual. Joined Sep 1, 2014. Mine passed with the cobb catted, you will have to get one welded on or buy a catted DP, not having a catalytic convert is apparently . Another benefit with IE is you can put a GESI cat like the one UNI uses in the space easily if you want to pass emissions. There is some level of trust still there for newer rides. You will probably pass the sniffer test. Speedette (a member here) just installed one and her car flashed a cat inefficiency CEL today. 12-18-2012, 09:41 AM #13. Where, as part of our Site services, we enable you to post information or materials on our Site, we may access and monitor any information which you upload or input in order to fulfil our obligations to you and protect or comply with our legal rights and obligations. Oil Change. No your car isn't going to pass smog without downpipes UNLESS you find some kids to pass you =( buster84 04:15 AM 08-31-2013. If you have a catted exhaust system and a custome tune you might increase the chance you will pass. Nov 13, 2007 · With that said, stick with your stocker, pass smog, and install an aftermarket unit. Remove the engine cover. Will high flow cats pass inspection? Nope it won’t pass. Catless vs High-Flow Catted Downpipes. Best bet is to keep both of the OEM parts to swap in when the time comes, but you won't have to do so until 2029 (or unless you sell the car before that). Re: Cobb Catted Downpipe Smog Flashing it back to stock is the easy part. WRX-maniac Super Moderator Joined Sep 22, 2013. The ARM MK7 Downpipe gives you an immediate improvement in turbo spool, power and torque. To be honest, if the rest of your car is running correctly, your car should pass perfectly fine with a catted down pipe. If the emission test is visual and uses OBD2 port, then your catted downpipe will. WHen the time comes to re-smogging, swap it back. 14 gru 2013. These FAQ topics are excerpts from our live chats which we host weekly every Monday at 10AM PST. You could also get the Bosal downpipe that retains the third and final cat in the factory exhaust system. Apr 28, 2010 · 8,248 Posts. With that said, stick with your stocker, pass smog, and install an aftermarket unit. It looks relatively stock, and will give you a performance boost. Jan 12, 2018 · Re: Cobb Catted Downpipe Smog FL4T. By no accident there will be the smell of raw fuel / unburnt hydrocarbons. Feb 18, 2009 · The 02-05 WRX comes with 3 Catalytic Converters. You will fail the visual test immediately. Replacing these with our single high-flow unit will dramati. 28 mar 2016. A downpipe is one of the first modifications that should be done on your car, as the OEM downpipe contains two very restrictive catalytic converters. Reactions: squiggy and Flippercon. No it shouldn't matter if you're tuned to pass smog, as long as you have your cat and your car isn't displaying trouble codes. 5 Things you NEED to know BEFORE buying a DOWNPIPE (F30 BMW, WRX, EVO, Supra, and any Turbo Car!). You could also get the Bosal downpipe that retains the third and final cat in the factory exhaust system. These fumes then intermingle and become part of the engine's combustion. Pull off the radiator cover at the front of car. 25" reducer to allow it to mate up perfectly to the stock exhaust system. This is a pretty good boost of horsepower from just one performance mod. Can you run full catted down pipe and CBE untuned ?. That car has a tune and the O2 sensors are disabled so it can pass emissions. Will a car pass smog with no catalytic converter? If the vehicle was built prior to the need for catalytic converters. Discussion Starter · #1 · Mar 10, 2015. genesis lopez naked
The CEL can be avoided with either a tune like JB4 and Cobb or with a DP Fix. . Can you pass smog with catted downpipe
Anyone have any experience with passing smog in NV and having a tune with a high flow catted downpipe?? Getting frustrated!!!. Has anyone with an aftermarket downpipe been able to pass emissions in this area. com Subaru forum. Click on the right Kitty answer or else. Was smogging the daily beater the other day and got to talking with the manager of the smog place. There are smog legal intake manifolds, headers, cylinder heads, and camshafts available for lots of cars. Where, as part of our Site services, we enable you to post information or materials on our Site, we may access and monitor any information which you upload or input in order to fulfil our obligations to you and protect or comply with our legal rights and obligations. An aftermarket downpipe with catalytic converters will add 10 to 20 horsepower on average, and that gain is noticeable anytime the turbo spools. Bright before I need to get my inspection, I flash back to stock tune and then use a vcds cable to get the car in readiness mode. View Product. The ARM MK5 GTI catted downpipe will fit the existing OEM catback exhaust or any aftermarket exhaust that connects the OEM downpipe. I lived in VA and all they do is hook up a scanner. You can use that intake no problem. Is it easy to install a downpipe? Yes. Apr 13, 2019 · Joined May 7, 2018. It looks relatively stock, and will give you a performance boost. All catless downpipes remove a major part of your emissions system, the catalytic converters. Any definitive answers on this would be appreciated. People say you can pass it without CAT as long as the car is tuned. In CA you only smog ever other year after 6 years. Apr 13, 2019 · Joined May 7, 2018. Catless can work, but then you'll have a P420 CEL, which won't pass. It could pass the sniffer test if they administer it to cars this new (I . Sep 12, 2019 · Joined Feb 6, 2012. Car is FBO too. #6 · Apr 29, 2010 (Edited) I say just keep your stock downpipe. Anyone have an aftermarket catted downpipe installed and tried to pass smog with it? I'm considering buying one, but I don't wanna have to do the stock-parts-dance when I have to get my car smogged next time. This is a pretty good boost of horsepower from just one performance mod. Depending on your area, county, state, etc. Removing the cat from the downpipe on an XT without a remap could cause much bigger engine issues like running lean etc. If you get a catless version, then the vehicle will emit a noticeable odor. On my 07 sti I passed with that same downpipe, headers, smog. Can you pass emissions with a down pipe? In short, yes. Jul 16, 2021 · Catted downpipe comes with a less restrictive CAT. The addition of this flex section reduces tension on the turbocharger caused from torsion during hard acceleration, cornering, and braking. · If the noise is over 95 decibels, exhaust modifications are not allowed. Discussion Starter · #1 · Mar 10, 2015. That brings the tag down to $712. Do Catted downpipes smell? They do smell a bit though, and I have secondary cats. 18 lip 2021. it's not that the CAT on a high flow DP is low quality so much as it is a low cell count. With that said, stick with your stocker, pass smog, and install an aftermarket unit. 1,697 1,184 Virginia Beach, VA Vehicle Model. I have stock M4 with mpe no other exhaust mods apart from CG precision valve controller. Popular MQB Downpipes Front Wheel Drive Catted Downpipes. You could also get the Bosal downpipe that retains the third and final cat in the factory exhaust system. NOTE: Once you have added our downpipe to your vehicle, you must be tuned. I pass NYS inspection no problem and no engine codes with my stage 2 tune either. Aftermarket cats are junk and only a matter of time before you throw a cel and regret not going catless in the first place for more power. That brings the tag down to $712. Does a Catted downpipe add horsepower?. You don't even need to reflash the stock map. Anyone have an aftermarket catted downpipe installed and tried to pass smog with it? I'm considering buying one, but I don't wanna have to do the stock-parts-dance when I have to get my car smogged next time. Overall, if you are looking for the best power and spool catless downpipes are the way to go. If your catted downpipe has 2 CATs then you can pass the emissions test. Check out damnfastdd. Not 100% sure, but from my understanding, any alteration to the factory catalytic converter will not pass smog. Will it pass with the aftermarket cat? CrazedAntelope Joined Jul 12, 2015 Threads 3 Messages 252 Reaction score 70 Location San Jose, CA. Save Share. Apr 13, 2019 · Joined May 7, 2018. It looks relatively stock, and will give you a performance boost. Within 75 miles had a CEL. You should keep in mind that California smog laws may still make your custom exhaust. If your car has over 50,000 miles, then you can have whatever kind of cat and pipes you like, so long as it passes the sniffer test. not so much. Oct 26, 2022 · Will a Catted downpipe pass smog? No, a typical aftermarket downpipe will not pass visual inspection at the Smog Shop. You'd have to tune it out via ECU tuning. Catted Downpipes. said: Yes, you can still get a downpipe + protune. By no accident there will be the smell of raw fuel / unburnt hydrocarbons. Catted Downpipes. With valves open it is loud, sets my neighbours car alarm off on cold starts, pops and burbles lots more on low speed deceleration and the turbo dump bark noise when you let off quickly is far louder and more frequent. If your car has over 50,000 miles, then you can have whatever kind of cat and pipes you like, so long as it passes the sniffer test. 5" downpipe to 3" front pipe and exhaust. No, you don't need a tune with just a catted down-pipe either. 0L Turbo Powertrain (EJ Series Factory 2. Catless downpipes are an off road only modification and should not be used on the street. If your car has over 50,000 miles, then you can have whatever kind of cat and pipes you like, so long as it passes the sniffer test. With valves open it is loud, sets my neighbours car alarm off on cold starts, pops and burbles lots more on low speed deceleration and the turbo dump bark noise when you let off quickly is far louder and more frequent. Told him my car was due for smog and asked if I could just do the sniffer only because as of right now all smog shops are still doing it instead of the OBD2 scan. So you have quite a while before you have to worry about it. Is this can good enough so my car can pass the smog test in California? 0 of 0 people found the following answer helpful. com Free App Learn something new all the time. This deals with the smell from the raw exhaust fumes. Posted by. 2002-2007 Subaru WRX, 2004-2007 Subaru WRX STI, and 2004-2008 Subaru Forester XT Catted Downpipe by GrimmSpeed A downpipe is one of the first modifications that should be done on your car, as the OEM downpipe contains two very restrictive catalytic converters. Our customer service team often fields a certain call with a concern that “my car is running rich. · Hi fellas. Catted obviously then refers to headers that contain a catalytic converter. This is the GrimmSpeed Limited Catted Downpipe. Oct 18, 2020 · smog checks are like tinting your windshield or not driving with a front license plate. In CA you only smog ever other year after 6 years. What the 400 cells means is that per every inch, there are 400 "cells" that the exhaust gas must pass through. Within 75 miles had a CEL. DIRECT replacement, no cutting, welding needed. The high-flow option runs $529 and again is one of the best values on the market. I think OEM is 800, most aftermarket are 200-400 range. At Advanced Smog Testing Facilities they test HC (Hydrocarbons) CO2 (Carbon Dioxide) and NOx (Nitrogen Oxide) My Catted Downpipe allowed me to pass HC and CO2. Where cats live depends primarily on the spec. it's not that the CAT on a high flow DP is low quality so much as it is a low cell count. The second is is the downpipe and the third is in the midpipe. it will not pass a visual inspection. 3L is almost certainly the increased power. Feb 1, 2022 · Although, the biggest benefit of opting for high-flow catted downpipes is that your car will still pass emissions testing. I have a catless and live in Colorado so i have to "find a way" to pass emissions testing each time it is due. It doesn't matter if there are any codes or if the monitors are set or not. Take the top off of the airbox and remove the air filter. Nov 13, 2007 · With that said, stick with your stocker, pass smog, and install an aftermarket unit. A note that many people consider the dowpipe and the midpipe to both be one part (even though they are two. Re: Cobb Catted Downpipe Smog Flashing it back to stock is the easy part. You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. pharo said: i have the same question about cali. My 2016 passed emissions at the time, then I added a tune, installed a CVF 3" catted downpipe, and a J-shaped spacer by Vibrant Performance, using the middle orifice insert, as mentioned elsewhere in this forum. If want an exhuast that is not as loud, won't smell up the cabin with DP smell and will be better for the environment, the Catted version is for you. Catless vs High-Flow Catted Downpipes. AEM makes an intake that is CARB approved, so it's smog approved. Apr 25, 2014 #5. My 2016 passed emissions at the time, then I added a tune, installed a CVF 3" catted downpipe, and a J-shaped spacer by Vibrant Performance, using the middle orifice insert, as mentioned elsewhere in this forum. 5" aftermarket mufflers (Flowmasters & Dynomax), and 2. Yes, It’s expensive because it uses the same cat that’s on the factory DP. You don't even need to reflash the stock map. So you have quite a while before you have to worry about it. * 100 cell Custom high flow metal substrate Cats. A WRX with catless downpipes won't likely pass emissions. A downpipe is one of the first modifications that should be done on your car, as the OEM downpipe contains two very restrictive catalytic converters. Jun 28, 2016 · Or, get a downpipe with a resonator in it that looks like a cat. Gotta run a catted downpipe, flash back to stage I and then get tested, and flash back to stage II. Mar 10, 2015 · The RV6 downpipe has a defouler in the bottom sensor. If they ever wear out, you need to buy more factory originals. The gain may differ depending upon the size of the car's engine, turbo, and intakes. Will it pass with the aftermarket cat? CrazedAntelope Joined Jul 12, 2015 Threads 3 Messages 252 Reaction score 70 Location San Jose, CA. You can use that intake no problem. pharo said: i have the same question about cali. I want to buy a catted downpipe, specifically the MAP REV2 for my 2017 WRX. People say you can pass it without CAT as long as the car is tuned. you could have a sniffer test, which you'd probably pass even without a cat (though that depends on the car), or you will have a visual inspection (or both), the visual you will fail if you don't have a cat. 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