Aluminum Flywheels Good Or Bad

meh that's a big debate people chewing over 10hp at the wheels or .1 sec on a quarter not worth the time to type haha. they work, minor difference, cost money, etc. less of a launch from dead stop drag racing but faster in/out if you are autocrossing etc. there are other mods that give way better performance for the buck. if you already have it apart you could go either way but probably not worth taking the tranny out to replace it unless you are putting in a fresh clutch etc.

if you are trying to pinch every ounce and every bit of HP out of a car, then yes go that route.