I took these vidoes at the Leipzig AMI car show two months ago... I never posted the videos bc they are a bit vague on what car the Perf exhaust is for.
By far the best sounding exhaust I have ever heard was at the //M Studio in Garching... when I saw one of the test drivers fire up this Lemans Blue CRT prototype... WHAT a sound that thing had! For a sound like THAT... I could see spending 5K for it!
standard BMW exhaust... I think 335i ? The display did not state which BMW model!!...
performance exhaust... again the display did not say which model!! lol