I was wondering what size the gasket is between the header & the s-pipe (small donut like gasket).. I needed to buy a new one because I messed up the OEM one.

Thanks in advance.

 

i'm replacing my oem s-pipe monday, i'll measure it if u still haven't found an answer yet.

 

Are you buying an aftermarket gasket? If not then the dealer will have the gasket number right on the computer. Just tell them which gasket you need by describing what parts it goes in between, and they'll get you one.