JUGGA
Member
Registered: 7th Sep 03
Location: BEDFORDSHIRE
User status: Offline
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right been told if i get a straight through pipe in replace of the cat and silencer i will gain anything up to 10bhp + car will soudn alot louder.
but recently alot of mechanics have told me it will be slightly louder but wont gain any bhp and it will eat fuel alot more.
i believe the top one but what is the truth? getting a welder to weld a straight through pipe end of next week but i just wana know the truth.
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Ally
Member
Registered: 2nd Jul 03
Location: Pontypool Drives: a Skoda
User status: Offline
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What CC is your engine? A 1.2 or similar will suffer with that kind of mod due to loss of back pressure
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MoNkEy MaGiC
Member
Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
User status: Offline
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if its a complete exaust system including the manifold, downpipe and onwards then maybe upto 10bhp but not more than that if its a 1.2!!
but u will loose a lot of back pressure especially without the cat so u might not gain anything and also it might sound farty!!!
so keep the cat at least, to keep some backpressure and help with the farty sound
[Edited on 06-06-2004 by MoNkEy MaGiC]
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Marco The Corsa Man
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Registered: 24th Mar 04
Location: I Smoke Dead People
User status: Offline
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You'd get better gains out of a sports CAT, a manfiold and a good CAT back system. and it would all be tip top with the law come MOT or spot check time.
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JUGGA
Member
Registered: 7th Sep 03
Location: BEDFORDSHIRE
User status: Offline
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mines a 1.4 8v.
mate of mine has a 1.2 and he can go faster with the straigth through pipe added.
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Kris TD
Member
Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline
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maybe 10 bhp if its a turbo, if not, doubt it.
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