I have a '98 3.1L Lumina, and have found a '98 Lumina in the bone yard that has a pristine dual exhaust, rear disk brakes, and rear sway bar. Does anyone know of any issues with replacement of the brakes (mine are drum) and the exhaust? I want to get the exhaust from the cat back, with all the hangars. The exhaust is $50, so I can not pass up. Thanks for your help!