Okay I have an HKS exhaust system I bought off someone for my other car. It's from the cat back but it didn't come with the mid pipe. I measured the inside diameter to be 2.36 inches which isn't standard size.

Should i just go for 2.25 inches or 2.5 inches for the replacement mid pipe?

thanks

 

i think thats 60mm piping. you can try find 2-3/8" pipe but that may be hard. 2.5 should be good. it will be a bit bigger and it will slip over so it might be easier to weld depending on what your welding with

 

What's the diameter at the other end? If it's bigger, you could just get a long reducer and cut it to fit the 60mm pipe.

Best of luck with your project.

 

thanks for the replies. i'll try it out with 2.5". both ends are 60mm