BMW E90, E92 & E93 M3 S65 VRSF Test Pipes Available Coupon Code:"M3Parts" (Enter manually at checkout) Karbonius S65 Airbox: +9HP

Karbonius S65 Airbox: +9HP

Upgrade your BMW X3M / X4M with our Valved Catback Exhaust for increased performance

Note: The Oil Thermostat Installation kit prevents the Oil Thermostat from leaking and is highly recommended when installing the MSL Oil Thermostat

Improved throttle response

2 Year Warranty

BMW E90, E92 & E93 M3 S65 VRSF Test Pipes Available Coupon Code:"M3Parts" (Enter manually at checkout) Karbonius S65 Airbox: +9HPUnleash the sound of your S65 V8 while adding performance with a set of VRSF Test Pipes for your E9x M3! With not enough performance mods available for the E9X M3, we offer the catless test pipes. Removing restriction will automatically increase performance gains on any car. By removing the catalytic converter, you will have increase airflow through the exhaust. This will also increase sound and a little smell. By running catless you may find gains