97-03 04-08 PONTIAC GRAND PRIX GTP 3.8L EXHAUST HEADER | eBay Anyone ever mess with these? I was thinking about buying a set because they are not slip fit and they dump to 2.5. Any Input ? Also it looks like there is 5 or 6 companies on ebay selling what look to be all SD headers.I need to get the headers ordered but there is a lot of pros and cons for any of them and i hate dealing with Pain in the ass headers.The SD's kinda turn me off cause you have to use rtv on them and i would have to buy band clamps?? The thing is i can only bend 2.5 so if i used the SD 's i would have to reduce down but it looks like it may come with that pipe right? The SD's are 200, now these pacesetter knock offs if thats what they are?Are the about the same price so which one guys?