[tom @ eas]

Originally Posted by atermechi

Hello everyone,

I have been noticing a recent issue with my m3. In 3rd gear, around 2k to 4k rpm the the car almost feels like its pulsing and jerking until it reaches 4k and my speed is not to low for the gear (around 30 mph). I belive the same issue happens in all the other gears bu i feel it the most in 3rd. Also my car is a 6MT. I had my car tuned last year and recently just put in test pipes but i did not re-tune for cat less, maybe this can be the issue? Any help will be appreciated.

Thanks guys

What tune are you using?