need help!!!

if some of u could actually give me some good web. sites for aftermarket performance parts for my beemer, i would be really happy...I've heard about turbo kit, is that true?
and where can i look?

p.s. i bin browsing in Google and actually still looking but there is nothing much that i can see...also i was looking at Dinan page but there is like 3 parts for e60's

I dont know about any Turbo kits for the E60 M5 but here are a couple respected tuners:

www.turnermotorsport.com

www.evosport.com



Cheers