G37s 2008 factory pipe size

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Apr 4, 2019 | 05:29 PM

Aramyan2121

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G37s 2008 factory pipe size

Hello friends, i have a g37s coupe, i’m gonna buy a new pipes but i dont know what size i need, how many inches is? 2.5 or 3.0?

Apr 4, 2019 | 10:28 PM

CJ1957

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From: Olympia, WA

Here are the actual pipe diameter (actual hole not flange) for G37 coupe.

Y-PIPE:

Y-PIPE INLET (x2) : 1 5/8" or 1.625

Y-PIPE OUTLET (x1): 2 3/8" or 2.375

MidPIPE:

MidPIPE INLET (x1) : 2 3/8" or 2.375
MidPIPE OUTLET (X2): 2"

Muffler INLET (x2) : 2 5/16" or 2.313
(Part# 20100 JL01C)