it only happens when i come off the excellarator and whan its on idol you cant hear it when ur driving, just a bit but very bad when shifting down to stop....
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it only happens when i come off the excellarator and whan its on idol you cant hear it when ur driving, just a bit but very bad when shifting down to stop....
i'd take it back to the exhaust shop asap, as the longer you wait the more reason the shop will deny their at fault and blame it on you or something.
sounds like it might be a faulty Cat. There was a bad batch a while ago cos i know of alot of them coming back whilst i was at the exhaust shop. Your exhaust shop should be able to tell you the fault for no charge & replace the cat if its their fault
hmm.....i had a similar incident not so long ago. it was like a grinding/rattle sound. And the muffler guy found out that a nut in the manifold has come loose and fell off. They just replaced the nut and its all good now.Quote:
Originally Posted by VTI-RRR
it only gets worse because on down shifting it makes the exhaust shake slightly causing the sound, it'll happen whenever you downshift without rev matching
try holding the revs between 1500-1800rpm and i bet somewhere between that range you'll hear it rattle
also if you're okay with hopping under the car, jab the cat to see if it rattles. if it does then it might be a failed cat.
this is my experience with a custom exhausts and failed resonator, but it shouldn't be too different to yours
im going to the shop 2moror to get it checked....
its looking like i need to get a new 1
but 1 problem i supplyed the cat..
and its from queensland i call the dude i got it of and said they will replcae it with a new 1...
but i need to send my 1 back so they can have a look at it...
for now what should i run???
straight pipe(illegal)
or stock cat if it can fit...
hey bobby, i told you to poay a little extra and get alan at blitz custome exhaust to supplyt and fit the cat.
you know its your f*k up...lol
good luck man....i hope its ready fro the track tomorrow
open headers for track.:thumbsup:Quote:
Originally Posted by IEVAQ8
no zorst no problem
WRONG. Not at a track like Winton Raceway. You need an exhaust that limits noise to 95dB at 30 meters from the track edge.Quote:
Originally Posted by BlitZ
http://www.wintonmotorraceway.com.au...d=52&Itemid=25