11-06-2020, 09:18 PM | #1 |
#askforcharliek
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Down pipe with cat question
Now that BMW can flag your car if it is tuned I have a two part question. If I didn't tune the car car but installed a downpipe with a cat will that flag me? IF not, will I feel any gains/is it worth it?? TIA.
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11-06-2020, 10:27 PM | #2 |
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Not sure if you'd get flagged but I have a Catted down pipe (Active Autowerke) and definitely worth it imo. Butt dyno definitely felt a slight difference. Sound is better as well
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11-07-2020, 05:24 AM | #3 |
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There are downpipes in Germany which are homologated, like this. They cost a lot tho.
https://www.lightweight-performance....Kat-p228803193 |
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11-08-2020, 05:06 PM | #4 | |
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if something goes wrong that is caused by the dp than you will be out of luck but then again i havent really heard much of people having issues with this platform idk how the car will run with just a dp and no tune..i feel like it will run either too rich or too lean depending on conditions i know its recommended to tune it since it does allow more air flow the tune will allow you to get he most of the of the car in a safe way as long as the tune is reputable
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11-09-2020, 09:07 AM | #5 |
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the active autowerke downpipe is a safe mod for your warranty. The downpipe itself does not add any pressure on other car's components, if anything it reduces the pressure on your turbo and most importantly, it does not throw a check engine light
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11-09-2020, 02:04 PM | #6 | |
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Drives: '05 M3 6MT
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Thanks, Mike!
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11-09-2020, 06:10 PM | #7 |
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~15 HP without a tune
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