Intake & Exhaust Questions and info regarding various aftermatket exhaust systems for the G35 (Headers,Y-Pipes, and Cat-Back Systems)

Y-pipe diameter?

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Old May 28, 2007 | 12:55 AM
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johnsonhuang's Avatar
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Y-pipe diameter?

anyone know the size of the pipe? was planning to get a e-cut out for my 03.5 sedan and was wondering how big the pipe has to be for the y-pipe to fit.
 
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Old May 28, 2007 | 01:14 AM
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gary c's Avatar
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How big's your pipe?

I believe most y-pipes are 2 1/2" in diameter. Any larger would diminish your
low end torque unless you go FI........them's the rules!
 
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