MINI2 - MINI Forum - View Single Post

MINIMANIAUK · Apr 13th, 2008, 02:22 PM

The standard box is designed for noise attenuation,the exhaust gas changes direction inside and is full of sound baffles.you should gain power with a aftermarket one unless the pipe diameter is too large (ie cooper s diameter)

Apr 13th, 2008, 02:22 PM	#2
MINIMANIAUK MINI2 Sponsor Join Date: Mar 2006 Local Time: 10:08 AM Posts: 1,050 Offline	The standard box is designed for noise attenuation,the exhaust gas changes direction inside and is full of sound baffles.you should gain power with a aftermarket one unless the pipe diameter is too large (ie cooper s diameter) www.minimaniauk.com