Just installed a set of TTI race headers on a build for someone. They fit perfect except they rubbed the steering shaft. Just enough to scrape the paint off the shaft. Other then that nice product. ran the 3 inch H-pipe exhaust very happy with TTI. I will be using their exhaust on my car. I wouldn't hesitate buying them if i were you they fit much better than the old Heddmans.
I have used TTI W2’s and love them, they have 3 1/2” collectors, I run through a 3” magnaflow x pipe system, used both on several builds now and love them both
I have race heads with the wider spacing. What I was refering to in regards to the collector size was that the early race TTi W2s used 3" collectors . Later versions use 3.5
I might have a set of Hedman race versions (w/adaptor plates) available. Jet Hot coated in & out. One primary on driver side exits fenderwell. 1 7/8 prim/3.5 coll. I'm just waiting to hear back from someone looking at my W2 race heads/Edel int man and if he's interested in the headers as well.