aFe MACH Force XP Race Pipe for BMW E9x M3. Has anyone installed this??

[alefcole]

Originally Posted by Richbot

For what it's worth, this thing has now passed two sets of OBD checks on my car. My O2 monitors are active with an Evolve Stage 1 tune on the car and I've had it on the car for quite a while now. Still loud as hell at WOT with the MPE, still pretty quiet at part throttle except at cold start idle. Whatever they used for cats, they seem to be enough to keep the OBD O2 sensor monitors happy with their performance.

Richbot

How about vibrations with the AFE cat/resonated pipe with MPE?? At cold start my car shakes 4x more than before. But then it settles. Did you change mid bar exhaust hangers?? Or do you think a transmission support replacement will help with this??

Thanks for any feedback

[blacksedan]

Is there 2 versions of the exhaust? I see AC/DC's x pipe has no brace in between the cat and the end of the x section compared to Richbot's x pipe. Wondering because there is one for sale locally that looks the same.

[a5m]

Originally Posted by blacksedan

Is there 2 versions of the exhaust? I see AC/DC's x pipe has no brace in between the cat and the end of the x section compared to Richbot's x pipe. Wondering because there is one for sale locally that looks the same.

This is the latest version. I have a video of it too on YouTube in case you're interested in how it sounds (paired with MPE).