#43418, "RE: HP header,,,,,,,,Caping off emisions tube........" In response to In response to 0
A 1/2 inch pipe cap should fit that tube coming off the header. (that is what I used for my brospeed header, the size and threads should be the same for every header with that pipe coming off of it, if the header was made correctly)
Just go to the hardware stoe and look for a steel 1/2 inch pipe cap in the plumbing/fittings section.
