Originally Posted by kamek
What I've noticed is that my car does pull a little harder in the lower RPM range (especially in second and third gears where the car used to feel very sluggish), and there's a point after 3.5K or 4K where it opens up much more than it used to. The throttle feels more responsive, and pulls feel smooth. There's undoubtedly a difference. It may be small/minute, but it's there.
The car now feels "right," meaning it feels like it should've come from the factory this way.
I still stand by my belief that the best mod I've done to my car is my BMW Performance Exhaust with secondary cat delete. Now that's an enjoyable and definitely noticeable mod.
Good to see objective and honest reviews.
Can you comment on how soon you felt the throttle response? and how does the top end feel?