Downpipe Kit with 200CPSI Racing catalyst or without catalyst for BMW M140(x)i M240i 340i 440i & 540i made out of high quality stainless steel 1.4301 (SS304) complete ?3,5 and adapter for stock exhaust 200CPSI EU6 Racing Metal Catalytic Converter / optionally without catalyst converter 100% perfect fit, replace OEM less thermal load on the turbocharger more power by reducing back pressure significantly more torque Only suitable for cars without GPF! Error display in the DME possible.

The use of de-cats, sports cats are for off road/motorsport use only. Using these parts would inhibit your vehicle from passing a MOT test.

Only EC type-approved components are legal and fit for road use.

If non EC type-approved components are fitted at Performance M, the vehicle cannot be driven from our premises on the road, the vehicle will need to be recovered on a trailer to prove your intention is for off road use.