Mark Stielow’s LT4-powered 1969 Camaro is used to develop long-tube and mid-length headers for cars outfitted with a Detroit Speed subframe.

Finally, the headers were sent out for one last polishing. See All 28 Photos The full system, complete with X-pipe, is still in process, under Larry Jacinto's '71 El Camino at the Veazie Bros. hot ...

Headers and exhaust systems have become something of a cliché because everyone talks about them, yet not enough of us know how to choose them. We select headers. ... See All 15 Photos.

Developing Headers for an LT4-Powered 1969 Camaro. ... We’ve covered the build over the past year and you undoubtedly saw images of its debut at the 2017 SEMA Show in Holley’s booth, ...