Test Pipe slip on fitment (with Challenge Street pipe)

[M3 Number 86]

I posted in exhaust section but can you guys in here help? I tried searching, but didn't find any answers. I guess I just have to measure the xpipe diameter and the clamps to see if they fit.

http://www.m3post.com/forums/showthread.php?t=1210122

Originally Posted by M3 Number 86

Folks, I've searched and can't find an answer.

I bought a Challenge Street pipe from another member and he had the primaries welded into place. Recently I've wanted to go the test pipe route. I know these are sold with a clamp. Just wondering if I would be able to just cut and clamp as you do with an oem xpipe. Not sure if the piping diameter are the same since I wasn't able to transfer the O-ring brackets that bolt up to the exhaust supports alongside the bottom of the car.

Thoughts? Or do I just screw it and weld them on?

[Kong Sheng Han]

?

[M3 Number 86]

Originally Posted by Kong Sheng Han

?

The test pipes are a diameter matched to the stock xpipe. Not sure challenge Xpipe is the same so not so sure they'd match. I guess I can weld it together

[Kong Sheng Han]

Originally Posted by M3 Number 86

The test pipes are a diameter matched to the stock xpipe. Not sure challenge Xpipe is the same so not so sure they'd match. I guess I can weld it together

Can you measure using a caliper?

[M3 Number 86]

Originally Posted by Kong Sheng Han

Can you measure using a caliper?

Tape measure or rope and sharpie would work too lol