c20letandy1988
Member
Registered: 14th Apr 09
Location: Wirral, Merseyside drives: corsa turbo
User status: Offline
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hi guys i was just thinking what is the best things to include in a system for a c20let corsa exhaust system e.g. cat? centre box? backbox? iwas going to just run 3inch straight through with just a back box but not sure if i will need a centre box for back pressure etc?
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dale87
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Registered: 19th Feb 06
Location: West Mids :)
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Id like to know this too . I was thinking 3 inch straight through with 1 back box also but keep thinking it wil be too loud like that but I want it to work as good as possible in terms of performance. deffo not having a cat I know that 
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Robo C20Let
Member
Registered: 22nd Feb 10
Location: Somewhere inside your mom !!!
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you dont need back pressure with a turbo, 3 inch straight through will be very loud but free up the exhaust nicely
no point having a cat just have a box in the middle to make it a little less loud
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P1CK4D
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Registered: 19th Jun 06
Location: Around Essex Somewhere
User status: Offline
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On mine all I had was a backbox. As said, you don't need back pressure on a turbo'd car. Mine sounded the bollocks on full chat. I miss it 
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Robo C20Let
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Registered: 22nd Feb 10
Location: Somewhere inside your mom !!!
User status: Offline
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quote:
Originally posted by P1CK4D
On mine all I had was a backbox. As said, you don't need back pressure on a turbo'd car. Mine sounded the bollocks on full chat. I miss it
i know what you mean mine sounded like a jet taking off until i had to put silencers on it for track days well gutted.
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