For the person who is looking for a true dual Crossmember-Back exhaust system with an moderate to aggressive exhaust tone. With an easy fit in mind, these systems are constructed from 16-gauge mandrel-bent aluminized steel tubing with a built-in H-pipe crossover. The pair of specially selected Super 44 Series performance mufflers flows into 2.50-inch mandrel-bent tailpipes and includes all hangers and hardware necessary for installation. This system fits through the factory rear valance exhaust cutouts and includes a pair of 3.00-inch polished stainless steel tips. The American Thunder systems deliver a moderate to aggressive interior and exterior tone and are best suited to the enthusiast who wants their performance to be heard. Like all Flowmaster exhaust systems, the benefits include improved throttle response, power and mileage. All aluminized steel exhaust systems are covered by our 3-year Limited Warranty. If you prefer stainless steel construction, check out optional system# 817281 which is covered by out Lifetime Limited Warranty. Notes: Does Not fit convertibles or cars with staggered shocks. Does Not include header reducer cones or downpipes for factory manifolds.

This Part Fits:

Year	Make	Model	Submodel
1967-1970	Ford	Mustang	Base
1969-1970	Ford	Mustang	Boss 302
1969-1970	Ford	Mustang	Boss 429
1970	Ford	Mustang	Grande
1970	Ford	Mustang	Mach 1
1967-1970	Ford	Mustang	Shelby GT-350
1967-1970	Ford	Mustang	Shelby GT-500
1968	Ford	Mustang	Shelby GT-500KR