ok, the situation is - i had a full vortex afterburner system, today i replaced the back box with a blitz nur spec s (still have the afterburner centre pipe)
when the new exhaust was fitted it was alright, after about 30 minutes the car started to rattle really badly.... doesnt sound like the exhaust is knocking on anything...
would i need a new gasket???
i'm really not technical at all, so havent got a clue why its rattling,
i'm going to take it back to the garage that fitted the new exhaust, but just thought i'll get your opinions first.... could be something really minor

thanks in advance
wiley

 

without hearing the noise its hard to pinpoint the noise, if its nothing to do with the exhaust it could be engine noise i.e. crank bearing failure

 

dont think its the engine, car would have rattled before the guy fitted the new exhaust.... it sounds like it was coming right at the end of the car, only rattles when the road is bumpy... or if i change gears to quickly
wiley

 

if its rattling its more than likely the exhaust hitting the heat shield usually the centre section or hitting the rear diff try pushing and holding the exhaust to see if noise alters

 

dont think i have the courage to do it myself lol
so do you reckon the garage will be able to repair it for me straight away???
or do i need extra parts to stop it from rattling???
wiley

 

get laid on your back look under the car you wont brake owt looking see how close it is to diff and exhaust shield if its touching or very close thats your problem to test if makes contact give the exhaust a good shake don't be scared its metal you aint going to brake it

 

probably the rubber hanger worked loose as above just look, it wont cost you anything any you will be able to tell

 

probably somthing to do with the bolt springs that youve posted in your other thread

 

got it sorted!!!, it was something catching on the exhaust... not too sure what it was, we had to grind about 1cm off it to stop it from catching
sounds fantastic now
wiley

 

Had the same problem with mine when I fitted a TSL exhaust to my Afterburner centre. The Afterburner centre make the Backbox foul the bottom of the sub frame where the trailing arms are connected.

Don't think it would be a good idea to grind that back though if yours was in the same place ?