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

H&R Sway Bars are crafted from a special 50CrV4 steel alloy –– the highest tensile strength available and the industry’s strongest and most durable

Compatible with any chargepipe on the market

option for stage 2+ is great for 700whp

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,