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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 > Those w/ catless systems, do you backfire?



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      08-07-2009, 09:37 AM   #1
kyleb350
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Those w/ catless systems, do you backfire?

Just wondering. I will be going completely catless soon and might add a resonator in there if it's really bad.

EDIT: Just waiting on the DPs. Right now it gurgles on slight throttle while decelerating and makes a quieter pop between shifts sometimes.
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      08-07-2009, 09:45 AM   #2
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i m completely catless, no1 told me yet i do backfires. i dont think we do though..
i had SC M3 it was doing it so good ))
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      08-07-2009, 09:47 AM   #3
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Yes u will sometimes.... Mostly in 1st gear at WOT.
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