@greyghost340 Are you sure your in need of a 1-7/8 tube header? Juuuuuuuust checkin! That is a big tube for big power.
As mentioned by YR, used Hookers or Hedman’s.
TTI has stepped 1-3/4 - 1-7/8. *I Think* that is as large as they get from TTI for the standard exhaust port head. This may be a compromise?
TTI is the closest to what he requested @ 1-7/8 tube size. Does the Dougs headers come in 1-7/8 tube size?
I don’t think they do. But ya never know....