I own a 2003 GT stang, i gota Borla kat back with highflow muffs, i want to remove it now because i wish to run a strait pipe from the kats, but i want to sell the Borla, and where i took my exhaust to get done they did one hell of a welding job on it, and i dont want to have to cut the hangers off... Is there any other way i can get it off?