I just reviewed the article in Mopar Muscle when they dynoed the 7 different exhaust manifold/header combos and I am still surprised that the TTI's were only +16 ft/lbs and + 12 hp over the 70 HP units on the mild small block. I know that the numbers will go up as a motor gets more modified, but I am still trying to justify the price of the TTi's (apx $740) and the Doug's (apx $550) and the Extrude Hone (apx $675 + shipping) for only 16ft/lbs and 12 hp maximum gains.

I just want to thank everyone again for their replies and their experiences on this subject.