I was wondering how much power you can actually gain with headers and cams on an e34 535i. They are costly mods and i wanted to hear from anyone who has these mods and can tell me how they perform on the road, I already know how much power they are supposed to give.

tough call, depends on how hot the cams are, and how well the head flows at the various valve-lifts... not an easy question... if you have the cam specs and head-flow specs I could give you some idea....

^^^^^^ what he said

lol, which cams are u looking at? korman dinan or custom?

i posted this same question a while ago and got no response.... i believe it is VERY low unless you are running a F/I setup :( like 10hp overall

-Aurash
:redspot