2010 2011 BMW 5 Series Forum F10 - View Single Post

Alan l. · 11-16-2012, 09:38 AM

I am only interested in one for the sound and don't expect any measurable HP gains. When i removed my air box to install the JB4, i started the car up and the car sounded aggressive and had a blow off valve noise to it.

Alan

11-16-2012, 09:38 AM	#41
Alan l. Major General 5417 Rep 8,798 Posts Drives: 2020 F95 X5M Competition Join Date: Jun 2009 Location: United States iTrader: (9)	I am only interested in one for the sound and don't expect any measurable HP gains. When i removed my air box to install the JB4, i started the car up and the car sounded aggressive and had a blow off valve noise to it. Alan __________________
	Appreciate 0 Quote