Active Autowerke X3M / X4M Signature Equal Length midpipe level 2 Unlike multi-layer gauze filters which

Unlike multi-layer gauze filters which can fray and release fiber particles into your engine

M235i and M2 owners experience even running with the factory BMW boost

This simply wasn't possible with the G5 or SIMON 3 as it proved too costly for our consumers

Active Autowerke Supra MKV Signature Catted Downpipe Benefits

exhaust gases exit the turbochargers more efficiently—helping the turbos spool faster and reducing exhaust backpressure

Active Autowerke X3M / X4M Signature Equal Length midpipe level 2 Unlike multi-layer gauze filters whichAfter extensive research and development, ACTIVE AUTOWERKE has announced GEN 2 of our EL midpipes. We worked with our factories to create specially developed RESONATORS that remove rasp from the exhaust tones with minimal change in the volume of the sound. A side benefit is that this also resulted in a reduction in the "2k buzzing" annoying to some BMW owners as well as a reduction in the cold start rattle from the factory. We are recommending to