have a 97 GTS, I removed cats and converted to side exhaust, had corsa's on before but easily blew all the packing out so went to a round diesel cans to fit in the sills, the inside looks like an auger bit with a inch and a half straight tube down the center(no insulation or packing), then some high heat paint and header wrap for the entire unit and still had room for the factory insulation(barely), and while sills were off anyway removed the stupid sheetmetal screws under the sills and put threaded inserts in instead, and angled the discharge at 45 degrees with 3.5 inch discharge from the muffler to end so the termination is oval not round, cost 800 for both sides including header wrap and a new clamp from the header( some dingus had a ford branded one on before). had to dynomat the doors cause it scares children. sound is evil(good evil), cant wait to pull up side a Harley nut and blow his ***** off the back when I gun it. v10 loud pipes save more lives than his crappy v2 anyday