Designed in-house by Direnza engineers, our decat pipe is a direct replacement for the stock catalytic converter. Engineered to not only improve power and torque across the entire RPM range but Direnza exhaust components improve throttle response to help you push further and faster on the road or the track. ---Manufactured from T304 grade brushed steel ---Fully TIG welded and feature CNC machined flanges ---Mandrel bent pipework ---Ceramic coated to prevent heat emission to other components Compatible with: BMW 4 Series 440i F32 F33 F36 2016-2019 Models.
