Schumaker vs TTI Headers

it's like comparing apples to oranges. I have had schumacher's and they exceptionally easy to install, easy spark plug access, and are a nice fit. A little reduction of power is a downer, but the other considerations is a positive. I have not had TTIs on my car, but have had CPPAs on a 69 Barracuda with a 440+6 engine, major pain in the *** to install, poor ground clearance, tough spark plug access, great power. Unfortunately, it is hard to have it all in a small a-body engine compartment with a big block.