BMW M3 Forum (E90 E92) - View Single Post - Test Pipe vs X-Pipe Dyno Comparisons?

TrAcK TRaP · 06-16-2019, 04:24 PM

4 to 9 less HP with test pipe. With Race X-Pipe car will stink but it doesn't bother some

06-16-2019, 04:24 PM	#2
TrAcK TRaP bOrN To DiE 413 Rep 1,738 Posts Drives: 2011 E92 M3 ZCP Join Date: Apr 2013 Location: South Jersey iTrader: (0)	4 to 9 less HP with test pipe. With Race X-Pipe car will stink but it doesn't bother some
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