Thread: CHALLENGE - F30 335 - HFC and Catless Downpipes - Now Released! - Pics inside -
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      11-08-2013, 01:41 PM   #234
boomn29
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Drives: 2012 BMW 335i
Join Date: Nov 2012
Location: IL

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Quote:
Originally Posted by sydande View Post
so when ur at 2500 rpms and u downshift u hear backfiring?
No. It happens between 3000-2000 rpms when you're coasting. It's more much than burbles; it's a 'popping' sound. I'll try to get some audio up.
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2012 F30 BMW 335i
8sp; Red; Sport, 20x9f; 20x10r (wearing 245/275's) Bronze Forgeline DE3C's, M-PPK, Challenge HFC-DP.
Winter Setup: 18x8 Black Enkei's with Blizzaks!
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