MAD BMW E Chassis N55 Downpipe 135 335 lower This kit is entirely made

This kit is entirely made at Revshift in the USA from our proprietary 95A polyurethane formula and CNC machined 6061-T6 billet aluminum

The MAD S58 Front Mount Intake is engineered with a direct-fit design that requires minimal cutting of plastic behind the grills for a fairly easy installation process

Our charge pipes include a plugged 1/8″ NPT bung along with the couplers and clamps necessary for installation

Hand made from mandrel bent

Attention to EU Customers

MAD BMW E Chassis N55 Downpipe 135 335 lower This kit is entirely madeUpgrade from the stock N55 downpipe to the MAD N55 catless downpipe for maximum airflow, power, and sound! The Mad N55 Catless Downpipe is a high quality aftermarket performance part designed to enhance the power and sound of your BMW. Made from premium grade stainless steel, this downpipe is engineered to deliver maximum performance gains by optimizing exhaust flow. The removal of the catalytic converter allows for a freer flow of exhaust gases,