Originally Posted by 631twentyeighteye
My active autowerke exhaust on my 128 had this effect to a degree. While i didn't necessarily notice less torque down low, I instantly noticed it rev's way faster to redline then it did with the stock or PE exhaust. It's especially noticeable when you do a WOT run in 3rd, as soon as you get to about 4-4.5k rpm it starts pulling harder and faster then before it. Though i do get what most people would consider an annoying amount of drone, I can live with it because i enjoy having loud cars. Especially coming from my old 2.8 turbo diesel jeep with a straight piped exhaust
I've heard some people say they felt the BMW exhaust had a drone. I have no problem with the sound at all. It just sounds like more of a good thing. Never intrusive unless you want it to be.