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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > UR Downpipes & Smog Issues



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      01-21-2011, 04:02 AM   #1
jmilber
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Drives: Soon 335i Sedan
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Question UR Downpipes & Smog Issues

Hey guys,

I am a proud own of a 2007 E90 335i, whose warranty just expired (sob). The good news about my warranty expiring, however, is that now I can waste my money on UR downpipes and other fun products without fear of losing my warranty.

I am looking at the UR catless and high flow downpipes... and had a couple questions:

1.) Are these going to ruin my ability to get my car smogged for sure? Anyone care to share their experience with downpipes & it's effect on smogging?

2.) If my car fails smog, is it pretty simple to remove the downpipes, smog, and put them back on? I remember my friend saying something about him having to drive around for 200 miles to reset his computer or something... will I have to do the same to pass smog?

Any info or advice on coming up in the downpipe game will be appreciated.

Thanks!

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