DELETE THAT REAR MUFFLER AND FILL IN THAT BUMPER OPENING PERFECTLY WITH THESE TWO MUSTANG WELD ON FIVE INCH MONSTER TIPS MUST WELDED ON.. ALSO AVAILABLE IN STAINLESS FINISH. PLEASE SPECIFY WHEN ORDERING. INLET IS 3 INCH OUTLET IS 5 INCH AND LENGTH IS 12 INCHES (MUST REMOVE ORIGINAL MUFFLER FOR THESE TIPS TO FIT LOOK AT LAST PIC)