Huh? The headers go before the cats, so as long as they bolt up to the cats ok, everything is good.mushutofu said:They would fit but you'd probably have to modify the piping after the cats.
There was a discussion about welds on My350Z; it's pretty much a non-issue. As for the material. you're right; I originally thought the Crawford heasders were stainless, but I just double checked and they are not. They're not ceramic coated, however, they're high temp powder caoted, which they say will stand up to the heat. I found a thread where this was discussed and one of the Crawfros guys said that it would cost about the same amount extra to do they Jet Hot coating as it would to get them in stainless, but if you wanted something special, just call doug and he's work it out with you. SO, if you do want to get them Jet Hot coated, just call 'em up and have them do it. One stop shopping.mushutofu said:Those welds look kinda of nasty. The more weld you have the more chances of develping cracks in the long run. Also, ceramic coated headers start to peel after a while. I would recommend getting those headers Jet Hot coated before install.
Actually, I've heard that's one thing you DON'T want to do. While it does keep under hood temps cooler (kind of moot point in an FI car with CAI, anyway), it promotes much more rapid degredation of the headers themselves by not allowing them to radiate heat.ujmot said:Make sure to heat wrap them before installing them.