Quote Originally Posted by Bio248 View Post
you'll have a more stable upper RPM range because it's weighted better than the stock one.

otherwise you won't notice much out of it unless you're going for the overdrive pulley.
Wait, your saying the SFI dampner from ZZP is a Underdrive pulley itself or I would have to make the rest of the pullies(WP,ALT) underdrive to feel a difference?

yeah but not only is my stock damper MILES old, yes I only want it for stability and the extra strength(for my build). I would put a new stock one back on but why not go with something better, you know.....