Cp-e catback drone issues???

Yuchi · 07-05-2011, 06:51 PM

Does anyone have any drone issues with the CP-e catback exhaust system? Also, how much louder is it without the resonators??

MilehighM3 · 07-07-2011, 07:28 PM

I have the resonated dp back and there is some drone, mostly around 2k rpms under acceleration but ok @ cruising speeds. Non resonated would be quite a bit louder I'm sure and drone even worse

Yuchi · 07-08-2011, 04:23 PM

Thanks! I'm only going for the catback right now and I will add the resonators and stealth pipe

07-05-2011, 06:51 PM	#1
Yuchi Private First Class 37 Rep 193 Posts Drives: 2009 135i M-Sport Package Join Date: Jul 2011 Location: Montgomery County, MD iTrader: (1)	Cp-e catback drone issues??? Does anyone have any drone issues with the CP-e catback exhaust system? Also, how much louder is it without the resonators??
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07-07-2011, 07:28 PM	#2
MilehighM3 Brigadier General 915 Rep 3,456 Posts Drives: Harrop E90 M3 Join Date: May 2011 Location: Colorado Springs iTrader: (14) Garage List 2009 E90 M3 [6.50]	I have the resonated dp back and there is some drone, mostly around 2k rpms under acceleration but ok @ cruising speeds. Non resonated would be quite a bit louder I'm sure and drone even worse
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07-08-2011, 04:23 PM	#3
Yuchi Private First Class 37 Rep 193 Posts Drives: 2009 135i M-Sport Package Join Date: Jul 2011 Location: Montgomery County, MD iTrader: (1)	Thanks! I'm only going for the catback right now and I will add the resonators and stealth pipe
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