I have an old Mac 2.5" H pipe (about 15-20 years), that I sawed off the header-side flange ends, just above the oxygen sensor holes (about 6 inches). Unfortunately, like a dummy, I did not mark the ends - neither which side is which, nor what rotation. I'm kind of surprised I actually kept them. Anyway, now I want to weld them back on, but I have no way to tell where to put them - other than I know they point upwards.
For those wondering why I did this (and why I just don't use some factory headers to properly locate them); way before this, I turbocharged my car so my headers now face forward. I removed the ends to make room for some Y style cut-outs.
Thanks, Howard
Connect With Us