Convenience and no performance upgrades I had no idea. Dougs are now off my radar.. I see the price of stuff like that and I'm already no way, but for some reason would always assume you would get better performance with them with bigger tubes. I think now if I was ever to afford this kind of upgrade I would definitely go to the tti's for the bang for the buck...
Well this thread has helped me..
I posted above, mine don't have bigger tubes. 1 5/8, same as yours. TTI makes a great product. I used their head pipes on both my Dusters with the factory manifolds. Several header companies offer bigger tube headers if that's what somebody needs.
