the type s is loud and annoying, but it works, and unless you delete the mass air system or are going to soon delete the mass air system (mike, ya bastage!, we'll see whos bumper gets melted!!!, probably mine, but no prob!), the type s is actually pretty quiet when you dump it back into the intake, and like i said, i ran 27 or so psi of boost and i never got any hint of leaking, its when ya dump that thing into atmosphere it sounds like a pissed off canary (<~quote mattback)