fax2004
Member
Registered: 1st Nov 03
Location: 172
User status: Offline
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I forgot to mention in last post...
Ive de-catted my Corsa B, or more smashed the insides of the cat out, so theres still the cat shape on my system, but it sounds really shite, you can hear all the gases and rattles from the engine, i think its because theres no muffler between the engine and the hollow cat? If i put a proper straight through pipe on it, will this cure it, and has anyone else encountered this?
Cheers
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Fad
Member
Registered: 1st Feb 01
Location: Dartford Kent Drives: 330cd
User status: Offline
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well the cat acts as a silencer and i suspect not all of the honeycomb stuff has been takenout and is still loose int he cat itself so is gunna be raspy and rattly just get a decat pipe
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Tom J
Organiser: South Wales
Premium Member
Registered: 8th Sep 03
Location: Bridgend
User status: Offline
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i thought u had2 have a cat for the mot. because i had2 have mine removed because it had broken up, will i need a new1 b4 next MOT?
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Adam-D
Member
Registered: 11th May 02
Location: Cheshire
User status: Offline
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if either of u have a 8v spi i have a cat f/s
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Fraser Young
Member
Registered: 26th Dec 02
Location: Dundee City Drives: 58 Impreza WRX
User status: Offline
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yehh, they not cheap either
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Tom J
Organiser: South Wales
Premium Member
Registered: 8th Sep 03
Location: Bridgend
User status: Offline
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quote:
Originally posted by Adam-D
if either of u have a 8v spi i have a cat f/s
erm, i have an M Reg 1.2 8v, is that the right1?
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CorsAsh
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Registered: 19th Apr 02
Location: Munich
User status: Offline
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I had to replace my cat a while back because the internals had broken off and been fired out the back. Changing your exhaust from the cat back wont affect it as its the cat makin the noise. I put my full system with straight thru centre on and it still sounded like ball bearings bein rattled round in a tin can.
The only way to stop it rattling is to replace the cat itself. Your performance should also improve as your cat creates back pressure. It did when i put a new one on mine.
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CorsAsh
Member
Registered: 19th Apr 02
Location: Munich
User status: Offline
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quote:
Originally posted by flameredcorsab
quote:
Originally posted by Adam-D
if either of u have a 8v spi i have a cat f/s
erm, i have an M Reg 1.2 8v, is that the right1?
just read this ^ and yes, his 1.4 8v cat is the same as a 1.2 8v one.
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Adam-D
Member
Registered: 11th May 02
Location: Cheshire
User status: Offline
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yep this will fit 1.2 and 1.4 8v spi engines
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fax2004
Member
Registered: 1st Nov 03
Location: 172
User status: Offline
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quote:
Originally posted by CorsAsh
I had to replace my cat a while back because the internals had broken off and been fired out the back. Changing your exhaust from the cat back wont affect it as its the cat makin the noise. I put my full system with straight thru centre on and it still sounded like ball bearings bein rattled round in a tin can.
The only way to stop it rattling is to replace the cat itself. Your performance should also improve as your cat creates back pressure. It did when i put a new one on mine.
So your saying adding a cat will improve performance? I thought taking your cat off increased performance??
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Lisa
Member
Registered: 6th Apr 00
Location: Euxton, Lancashire
User status: Offline
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quote:
Originally posted by fax2004
quote:
Originally posted by CorsAsh
I had to replace my cat a while back because the internals had broken off and been fired out the back. Changing your exhaust from the cat back wont affect it as its the cat makin the noise. I put my full system with straight thru centre on and it still sounded like ball bearings bein rattled round in a tin can.
The only way to stop it rattling is to replace the cat itself. Your performance should also improve as your cat creates back pressure. It did when i put a new one on mine.
So your saying adding a cat will improve performance? I thought taking your cat off increased performance??
well you know what thougt did, on astra gsis it looses power. it only works on cars that are restricted by the cat which is not many.
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