jambo166
Member
Registered: 27th Nov 06
Location: WHITBY
User status: Offline
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i got a corsa b with a c20let in it, i want a full new exhaust system making up for it, i went to a garage 10mins away from me ad they qouted me £325 with a new booster centre box ect... but my down pipe is 2 1/2" which as far as im aware isnt that standard calibra size? so i asked for 2 1/2" bore size system, the bloke told me that i could have 2 1/4" or 3" bcos 2 1/2" would restrict the power and i would'nt get full performance owt of it so whats true and whats not, but alad that works at that very garage has a 1.3 civic with a 3" and its all noise, any suggestion or is is this right what he's saying? 
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ShEp
Member
Registered: 9th Aug 05
Location: Dingwall, Highland
User status: Offline
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2.25 or 2.5
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jambo166
Member
Registered: 27th Nov 06
Location: WHITBY
User status: Offline
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lol u stalking me? what would u personally recommend and dont supose u know where i can get a stainless centre box from lol
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ShEp
Member
Registered: 9th Aug 05
Location: Dingwall, Highland
User status: Offline
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Custom made probably
I had a custom one on my corsa turbo
If they say they wont make it ask someone else, as its custom, they should make what you want
and no, not stalking, just answering peoples questions cos im bored 
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jambo166
Member
Registered: 27th Nov 06
Location: WHITBY
User status: Offline
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lol so what would u recommend then the 2 1/2" or the 2 1/4"
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ShEp
Member
Registered: 9th Aug 05
Location: Dingwall, Highland
User status: Offline
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Mine was 2 1/4"
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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quote:
Originally posted by jambo166
so i asked for 2 1/2" bore size system, the bloke told me that i could have 2 1/4" or 3" bcos 2 1/2" would restrict the power
WHAT, 2 1/2" is BIGGER than 2 1/4" 
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jambo166
Member
Registered: 27th Nov 06
Location: WHITBY
User status: Offline
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yeh i know that im saying i wanted and asked for 2 1/2" but the bloke said that it would restric it but a 2 1/4" wouldn't nor would a 3"
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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HMMMMMMM
Are you sure he didn't say 2 3/4"
[Edited on 18-01-2008 by Vaux Lad]
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jambo166
Member
Registered: 27th Nov 06
Location: WHITBY
User status: Offline
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no he said i could have 2 1/2" but that he advises not to bcos it would restric it so he suggested a 2 1/4 or 3" which i dont mind i just wanted to know which would be the best for my engine
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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How can 2 1/4 be less restrictive than 2 1/2"?
Whats the engine spec?
3" is a bit big for a standardish Let.
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jambo166
Member
Registered: 27th Nov 06
Location: WHITBY
User status: Offline
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i honoestly dont know which this is my argument that my standard down pipe is 2 1/2" which i think thats a standard size as far as im aware, but my point was that i wanted a 2 1/2" bcos thats thats what my down pipe is, and i said i didnt want a 3" bcos that would just be stupid, so im getting a mate to make one up for me but i think im going to stick to the 2 1/2" or 2 1/4" they didnt stock the 2 1/2" so i think in my opinion they just didnt want to order the pipe in, but the lads that work there have all got 3" systems on like 1.3 which is ridiculous, enginest standard just got bigger intercooler and bits and bobs boosts turned up slightly from standard thas it mate.
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
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I have built and dyno tested a LOT of c20let corsa systems, 2.5" is the best option. the downpipe as standard is 2.5"
any bigger or smaller is bad for performance as testing has proven, infact even a 380 bhp LET is fine with a 2.5" bore.
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jambo166
Member
Registered: 27th Nov 06
Location: WHITBY
User status: Offline
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cheers mate thats what i thought and thats y i argued my case that i wanted a 2.5 cheers for that
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