Wanted to try and install my test pipe and exhaust tomorrow.

Searched and cannot find an answer. Is the exit of the OEM header 60mm? I won't have time to go get the Honda donut gasket, but I manage a Subaru dealer and we have a 60MM donut in stock.

I will be mating the OEM header to a 63MM Berk TP and a 70mm Greddy SE dual.

Thanks for any help.

Mike

 

Just reuse the original donut.

 

I know thats an option, but I am anal, and I would prefer to put a new one in with a new TP and exhaust.

 

I just measured my stock piece; you need a 65mm ID donut flange

 

reused the oem one. its higher quality and seals better.