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