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Joined: Jun 2004
Posts: 1,374
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Specialist
2002 Toyota Celica
Specialist
2002 Toyota Celica
Joined: Jun 2004
Posts: 1,374
Likes: 1
Hey, does anybody know what the inner diameter of the GTS's exhaust pipe is? Is it 2.25" or 2.5"? Is it the same diameter from the downpipe to the resonator?--besides the CAT of course...I don't care about what's after the resonator...Thanks...


I get my kicks on EC.

Joined: Jun 2004
Posts: 1,298
Specialist
2000 Toyota Celica
Specialist
2000 Toyota Celica
Joined: Jun 2004
Posts: 1,298
pretty sure its 2.5

Joined: Jun 2004
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Specialist
2002 Toyota Celica
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2002 Toyota Celica
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Anybody measure it with a caliper?


I get my kicks on EC.

Joined: Jun 2004
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Specialist
2002 Toyota Celica
Specialist
2002 Toyota Celica
Joined: Jun 2004
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I asked around and a few people said the stock piping diameter is 60 mm or 2.36 in. So going from 2.36 in to 2.5 in piping is a 12.2% increase in flow. Essential for nitrous users but I don't think it will help that much for N/A.


I get my kicks on EC.

Joined: May 2003
Posts: 582
Jae
Senior Member
2001 Toyota Celica
Senior Member
2001 Toyota Celica
Joined: May 2003
Posts: 582
i know its not 2.50 inner pipe. they don't make 2.5 inner pipes. they are measured on outside.

Joined: Jun 2004
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Specialist
2002 Toyota Celica
Specialist
2002 Toyota Celica
Joined: Jun 2004
Posts: 1,374
Likes: 1
thanks Jae...
so if it's not 2.5" inner, do you think it's 2.5" outer? Just want your opinion.


I get my kicks on EC.
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