F97/F98 X3M/X4M Signature Equal Length Midpipe F97 designed to give full control

designed to give full control over supplemental port injection

5" downpipe is for sure the best bang for your buck on the market

KnockCEL: For custom tunes (let’s the CEL blink if timing corrections reach a threshold set by the tuner)

giving a deep and sporty sound with no unwanted overtones or drone

Increased crush for improved bearing retention

F97/F98 X3M/X4M Signature Equal Length Midpipe F97 designed to give full control**This product is a part of the Active Autowerke Motorsport Collection. It is for RACE and OFF ROAD USE ONLY! For X3M X4M LCI, you need to order the G8x corresponding item. If unsure, send us VIN to make sure you order the right part. At the repeated requests from our customers, Active Autowerke is pleased to release the first ever Signature Equal Length Mid Pipe for the BMW X3M and X4M. This brings our expertise with building the first equal length