HFC DP + MPE versus BCS HFC DP and cat-back powervalve exhaust

09-09-2014, 06:42 AM	#1
Bee Pee Brigadier General 1774 Rep 4,510 Posts Drives: AW M2 DCT Join Date: Jun 2010 Location: SW London iTrader: (3)	HFC DP + MPE versus BCS HFC DP and cat-back powervalve exhaust I met up with another EWG M135i owner last night with a fad gadget sound recorder. Link below is thread on babybmw website with recordings of my car [HFC DP + MPE] and his car - HFC DP and BCS cat back exhaust which has boost activated powervalves, which he'd shimmed open. http://www.babybmw.net/viewtopic.php?f=74&t=65935 Enjoy !!! __________________ Fettled M135i EB AT then AW M2 DCT - both gone but not forgotten: Current '22 X3M LCI..
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