How about up to 60hp to the wheels (80hp crank) on a completely stock car or up to 100hp to the wheels (120hp crank) on a fully modified car? The JB4 features a simple plug...
Increase throttle response and decreases turbo lag with the VRSF chargepipe for your 135i, 335i & 335is. Our aluminum chargepipe features a CNC billet aluminum OEM throttle body flange and is finished in powder-coated black....