Quote:
Originally Posted by G37sHKS
sound like a leak, re install everything again properly and put silicon between each couple..
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The installation was actually done by a dealer who sells lots of aftermarket parts and installs them all. Its actually funny i was gonna go with the stillen unit but didnt because of some of the fitment issues i read about. The big problem i think was they didn't test drive it before giving the car back to me. What's most puzzling is that when I'm cruising or at less than approx 60% throttle there's no hiss/whistle or much rattle. When I go WOT the hissing is loud and you can hear it all the way to redline and the clunking rattling is just awful when letting off the throttle and having the revs drop from 3500 to 2500. Is so loud it almost sounds like the exhaust is scraping the pavement. I can't figure out why what seems to be a physical rattling is so prominent under those decelerating conditions in that specific part of the rpm band.
I SUPPOSE the hissing/whistling will subside and I could get used to it (I don't have much of a choice) but that rattle is god awful and when it's fixed I'm HOPING it will possibly lead to less of the whistling/hissing if it's contributing to a leak.
This reminds me of when I had rims on my H2 and the nalncing weights fell off one of the wheels and it sounded and felt like the car was firing off a machine gun under braking. Ok maybe not that bad but equally as frustrating and aggravating.