I've got a manual 325i that has a problem where the engine cuts out at around 5200 rpms. I do not think the tac is off becuae it started to occur a few months ago and feels like it may also be losing a little power. It does not stall or anything but won't go past this point. It does this in just about every gear and does not do it if you slowly accelerate up past this point. It mainly just doest if if you hammer it or floor it. I have done alot of work to this car lately and really am stumped about this problem. The things I've done to it this summer include dinan chip, scorpian exhaust, k&n intake, oxygen sensor, thermometor, manifold gaskets and more. I am suspecting that it could have to do with the ignition like distributer cap and rotor.
Anybody had this problem or got any ideas whats wrong