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Z1 Motorsports Universal Exhaust Flanges for all vehicles.

Produced in a mild steel, Z1 Motorsports is now offering a full line of exhaust flanges in both 2 and 3 bolt configurations available in either 2.5" or 3" Inner Diameters.

Great for building a custom exhaust system or repairing an existing, damaged exhaust system. 

Be sure to specifiy the correct bolt pattern and exhaust flange size below.

Sold individually!

Available Options:

Exhaust Flange Size:

Bolt Pattern:


Reviews Ask A Question About This Product

Questions our customers have asked...

will this the 3 bolt exhuast flange will bolt on the oem 370z headers ? Best regards

Response: They will not, but you can find the flanges you're looking for at the link below. (Link)

Does anyone know the bolt spacing on the 2.5" ID? Seems like it would need to be 4 1/8" center-to-center based on measurements from the 350Z

Response: The 2.5" flange has holes centered 3 and 11/16" while the 3" 2 bolt flanges has holes with the centers spaced 4 and 3/16"

Is the 2-bolt pattern flange the correct one I need to connect the cats to the exhaust? & will this fill flush with oem cats?

Response: Yes, these will bolt up to the stock flanges.

Will the 2-bolt flange bolt onto the oem 03 g35 coupe cats?

Response: Yes

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