Road Legal Sports Catalytic Converters removed from my 2007 E93 N54 335i after 6,000miles as I have upgraded to Full 3 Catless Downpipes instead. Collection From E1, Banglatown, or can be posted at buyers expense. This BMW N54 135 335 535 Z4 Twin Sports-Cat Down Pipes upgrade kit is the perfect addition for any car enthusiast. The kit includes down pipes and features a twin design for improved performance. It is compatible with reference OE/OEM number 75536221 and is a great fit for BMW vehicles.
It is a easy to instal and comes with all the necessary items included. This upgrade kit is perfect for anyone who wants to improve their car's performance and achieve a smoother ride.