wrong diameter of the inlet end
Verified Buyer -
bought all 3 pieces to replace the exhaust system. The diam on the tail pipe's inlet was identical to the muffler's outlet end. Therefore, had to spend half hour of strenuous labor of 2 people to expand the inlet end to accept the muffler using the manual pipe stretching/expanding tool. Luckily, I recognized this problem before I left the store, and therefore, immediately picked up the loaner expander tool. Otherwise, it would require additional waste of my time to go back to the store.