i noticed a louder tone from the engine. i dont know if it's noticeable to others outside the car like if you had headers or something like that.
i also note hearing the intake "intake-ing" when i hit the gas going into 3rd and 4th gear!
definitely noticeable throttle response difference as well.
dont expect to be thrown back in your seat tho. its not that serious.
__________________
New goal...  yea its an M3! 
|