I just had the Helix 3" dp and the HKS Hipower cat back Exhaust. First what can we do about the rattle against the frame, besides wrapping the pipe? Has anyone bent tabs, brackets, shimmed anything to make it work? Second what kind of gains should I feel? It seems like the turbo spools up a little quicker maybe, but I don't think it was as impressive as I thought it would be? Is it just me most likely? Help with the rattle thing would be greatly appreciated, and the exhaust looks and sounds great.

Thanks