O.K. Then it's the dual pattern on your heads that allows you to put a bigger tube on without the "pinching" .875" = 7/8" so you are getting 1 7/8" which are not the spl ones which don't come that big. Sounds like a good header, I can't wait to see how it fits!! I hope it tucks up nice...they list for 80's through 95...so are these for 94,95's? or are they 1 fits all the years?