Project G-370 exhaust

Originally Posted by Fantastic Z I too had them next to each other and when you measure the internal diameter on the inlet side using a measuring caliper. The G

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Project G-370 exhaust

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04-01-2014, 08:58 PM

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jwick

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Quote:

Originally Posted by Fantastic Z

I too had them next to each other and when you measure the internal diameter on the inlet side using a measuring caliper. The G coupe pipe is 1.8" inlet and 2.4" outlet. Both Y-pipes measure 2.4" outlet but, for some reason the G coupe piping is smaller. 08 G coupe Y-pipe vs 09 Z Y-pipe

You could very well be correct there. I was only concerned with flange locations and didn't measure pipe O.D. Maybe the O.D. difference is where the extra 2hp comes from.

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