fit
You do expect stuff to fit, but that's no guarantee.
I called their tech support yesterday and said I got no return phone call. The guy didn't say anything in response.
I told him about the difficulty getting the passenger header in on the passenger side. He said these cars are a tight fit. I have an automatic. Well yeah, I know there's only just so much room, but the instructions aren't the greatest either. He said the warrantee covered poor fit, but told me I'd have to remove it, send it in, then reinstall it. Well, I don't want to spend over half a day doing the job. He told me to basically crowbar out the headers away from the frame. He made it sound standard to have to do this sort of thing with headers, and made it sound relatively easy- no it's not!. Heck, I'm no Arnold, I work in an office. So I'll either need a longer crowbar, or I'll have to get an acetylene torch and have to heat and bend.
Bottom line- buy another brand.
An aside: I have H-pipes with high flow catalytics. I had to put the stock mufflers back on; the FlowMasters were just too loud. The volume really picked up after installing the headers, and the sound is good. The performance is good on the JBA's, but the fit is frustrating.