Originally Posted by alofoque
How is that meth kit along with the procede. Any issues? Would the longevity of the motor be compromised running meth? I'm trading my FBO+Meth 135 and since i'll have shiv's PWM kit laying around i figured why not try it on the M along with the tune. I was very happy with it on the N54, thing was a monster.
Im running it without ANY issues at all. The car runs strong all day anyday. Install took about 2 hours. If you decide to go trunk mount may be a little longer. Just know, the M3 has a different wire harness for the REV3. With just removed secondary cats, magnaflow exhaust and Proceed with Meth i made 400 whp on the same dyno that other cars needed full bolt ons and a tune to make 400whp.