Originally posted by Shingoblade-GSR
http://solar.innercite.com/comptech/210001ls.html
Comptech doesn't carry MIG-welded headers anymore (the cheaper weld), so you'll have to source it from one of their distributors and hope it's in stock.
All Comptech headers are 4-2-1, although they do offer a 4-2-1 "race" header.
Shingo
what is the difference between the regular header and the "race" header?