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.
Fits 1967-1970 Ford Mustang with V8 engine and exits through rear valance exhaust cutouts. Does not fit convertibles or staggered shock models.
Fits 1967-1970 Ford Mustang with V8 engine and headers. Aluminized Steel. - Aggressive to moderate sound
Does Not Include Header Reducer Cones or Downpipes for Factory Manifolds
Flowmaster 67-70 Mustang American Thunder Thru Valance Exhaust System
Super 44 Series Performance Mufflers for Deep Powerful Sound
Flowmaster American Thunder Crossmember-Back Exhaust System
H-pipe Crossover for Maximum Power and a Deep Tone
Includes Hangers and Hardware for Installation
Mandrel-bent 16-gauge Aluminized Steel Tubing
Aggressive to Moderate Exterior Exhaust Tone
3.00-inch Polished 304 Stainless Steel Tips
Crossmember-Back True Dual Exhaust System
Over 35+ Years of Flowmaster Quality
6770 MUSTANG AMT THRU VALNCE
3-Year Limited Warranty
SYS 67-70 MUSTANG AM
SYS 67-70 MU
