View Full Version : Pre Cat Pipe Sound ????
Coupe John
05-08-2008, 17:27
Ive just had mine done but it only seems to sound like a blowing sound/rasp from under the bonnet its got me :confused: all brand new gaskets used aswell, Ive had a few people press the throttle on and off and you can't really hear it with me face nearly touching the turbo lol, but you can when your in the drivers seat with window open. I cant find any leaks at all i'm stuck, are they meant to sound like this normally? when you plant it on boost I cant hear anything, its only when its stood still and blip the throttle a little. Could the precat still not be lined up correctly?
Enigma ???
05-08-2008, 19:03
I say it's not lined up properly mate disconnect it from the main exhaust and then fit it;) It takes a while.
dannysport18
05-08-2008, 19:12
take the gasket off an refit
Coupe John
05-08-2008, 20:45
Just been out in it again and its doing my head in now, I'm gonna try refit it when its dry this week, i'll try another new gasket and if that don't work i'll fit it like danny said without one, hopefully that will work. Cheers :)
TurboMark
06-08-2008, 15:20
I've got a gasket on mine and mine is making the same rasping sound when you boot it. Let me know how you get on removing the gasket.
I have read on a old thread that you need to remove gasket.
FlameRedCorsa
07-08-2008, 15:53
Do you get this when you're on the throttle or when you lift off? I'm getting this same problem but only when I lift off.
Coupe John
07-08-2008, 16:59
Problem Fixed :cheesy: Would just like to thank dannysport for the advice, just for everyone else I removed the gasket from the precat to turbo and refitted it using a jack to butt the exhaust up to the turbo and then tightent the clamp up and it sealed perfect first time, no more blow or rasp anymore. :)
D4nnyGsi
07-08-2008, 18:55
Mine rasps as well. Gonna remove it then!!!!
Waveybluewater
07-08-2008, 23:08
Same here, it didn't until Powerflow did my system, gonna rip the gasket off then...
pre cats are a very good mod! Best £120 i spent so far! Really felt the difference up the rev range. Cant notice it now tho as i'm used to it! LOL
pre cats are a very good mod! Best £120 i spent so far! Really felt the difference up the rev range. Cant notice it now tho as i'm used to it! LOL
CS1 maybe CS2 then nick.;)
how loud is the pre cat is there much noise getting 1 fitted friday
how loud is the pre cat is there much noise getting 1 fitted friday
Not much mate. Its not loud.
but does make abit of noise??iv got a bastuck cat back an that dont make much noise at all i dont want loud but want a some for people to think wots that coming if you no wot i mean
but does make abit of noise??iv got a bastuck cat back an that dont make much noise at all i dont want loud but want a some for people to think wots that coming if you no wot i mean
I know what you mean mate but i cant hear it as i got a powerflow cat back so that does all the roaring. Think it does a little growl. lol