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      05-28-2013, 07:21 PM   #12
System Of A...

System Of A...'s Avatar
Drives: e93 M3
Join Date: Jun 2010
Location: 818

Posts: 849
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2008 BMW e93 M3  [3.83]
my catless gintani race exhaust does this allll the time, whether its shifting up, or in the midst of high revs due to downshift. all kinds of pops and gurgles and backfires and my friends noted to me a confirmed flame once, due to downshifting to 1st going maybe 35. i didnt see it, but it sounded like a grenade went off. love it
Gintani 4.6l S65 | Gintani Race Catless Exhaust | Gintani CF Race lip