This direct replacement is the 2 inch Y pipe only with 2-1/4 intermediate pipe outlets and is for any 1971-73 Mercury Cougar or Ford Mustang with stock cast iron exhaust manifolds. These units are manufactured right here in the good old USA from 2 inch aluminized pipes and made from an original 1971 Cougar and Mustang with the 351C 2V engine. We also sell OEM style dual exhaust systems that include the H pipe, mufflers, and tail pipes.*NOTE*
Will not fit 1970 351 Cleveland engines. Please allow 2 - 3 weeks for delivery.