Thread: N54 Backfiring?
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      07-09-2011, 03:41 PM   #2
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Drives: 2015 M4
Join Date: Dec 2008
Location: Oxnard, CA

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Originally Posted by evilstib View Post
Replaced stock midpipes with (previously owned) CP-e catless midpipes. The Downpipes & muffler are stock.

I love the tone, but I get a lot of backfiring now. I didn't think removing 2 of 4 cats and the resonator would cause this.

Anyone else see this before?
are you sure its backfiring and not just the "gurgling and popping"? I have full catless and I get lots of gurgling and popping but they only time i ever get a hint of backfire is when i am wot at low rpm and then shift gears before 3500 or so
2015 M4 6MT - JB4 / Gintani DPs / AFE Filters
2005 M3 6MT VF Engineering S/C
2009 135i 6MT -Traded In 412 WHP 457 WTQ
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