forget the obx, find a used svt header, cat and flex pipe, buy the cat and flex off this site http://www.mandrelexhaustsystems.com/servlet/StoreFront
... and you would need the power steering line from the svt, or off c-f-m.com you can get the relocatioin line. you also need an oil dipstick from the svt. and you can even get a decently priced exhaust 2.5" diameter. i went the cheap obx ebay route, worst waste of money ever...the svt header is a tad bit not on the cheap side but you get the best results as far as power goes and it wont be as loud as the obx, and the fitment as stated above wont be an issue.