Well they are cheap in price compaired to TTI's......it's bad enough spending $400 on a set of Super Comps but $600 for a set of headers is BS.....the cheap $150 Hedman and Hooker headers don't fit bad enough IMO to warrant spending $600+ on a set of headers......that you still have to run a mini starter and drop the centerlink to install......I'll stick with the Hooker and Hedman's.