I've installed a lot of headers designed just like these (cyclones, hedmans, etc). They mostly fit decent - maybe a ding or two. Once on they work. However, I put Doug's on my last Duster, and not one ding needed. No steering components go through them, they are off the ground more than the cheapies, they are better quality/better made, allow access to #5 & 7 plugs, more room around the starter, well worth the 450 I paid.