I had my Pypes install for my 67 done at their facility in PA. Worked out well for me as they needed a first gen car with stock manifolds to make a prototype. I got free installation and a great deal on the parts. I do have some complaints though. The pipes are so big, there is not enough clearance for my suspension to "bouce". The pipes in the rear hit the leaf spring occasionally. Not a nice sound. The other complaint is the resonating noise at cruising speed. A little annoying but I have learned to live with it. The sound at Idle is great. I got the X Pipe crossflow system with the Race Pro Muffler.
