72 GTO Lemans GT Ram Air HO Complete Exhaust System kit includes: Preformed dual exhaust 2 1/4" stock head pipes that are reduced to 2" to go into the mufflers kit includes: 2 1/4" tail pipes that have the correct tail pipe bends to accept the 72 specific chome splitter tip RA head pipe flanges and bolts, factory stock mufflers, muffler hangers, muffler clamps chrome tip tail pipe hangers system is made of aluminized 14 gauge tubing so all the pipes are as thick as the originals and have a durable coating