My 86 300E 5 speeder needs a new exhaust from KAT back. PO replaced the front, the rear is unsalvagable. Fastlane wants 400 bucks for the center and rear muffler, all bolt on. Has anyone 1) Ever removed the center or rear muffler? 2) Used an aftermarket system they liked for under $50,000?? 3) Gone to Midas? 4) Done all the above and wished they stayed OEM? PS Why is Smity's 30% Cheaper? Scott