Quote Originally Posted by santacruz77
lol i guess i dont know about thoose cars but why would a header make you want motor mounts?
Because, these car's have fairly weak motor mounts, and when you rev the engine, you can see the engine MOVE in the engine bay...
and, when you install a performance header, since the engine moves, and the PERFORMANCE header doesnt have the ability to flex where the header connects to the downpipe, like the stock header does, it'll end up getting bent and leaky when the engine moves on the stock mounts