American Thunder Header Back Exhaust System; Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 44 Series™ Mufflers/4 in. Polished Stainless Tips; 409 Stainless Steel;
Flowmaster American Thunder true dual exhaust systems are engineered with maximum performance in mind. These systems feature specially tuned mufflers, cross-over pipes, clamps, hangers and mounting hardware. If you're looking for the famous Flowmaster tone look no further. American Thunder will deliver the aggressive tone you want as well as the performance you demand.
  • Mandrel Bent Stainless Steel Tubing
  • Limited Lifetime Warranty
  • Moderate Exterior Exhaust Tone
  • Incl. Hangers and Hardware For Easy Installation
  • Header Back System
  • Dual Out Rear Exit
  • Dyno Tuned for Maximum Performance
  • Premium Flowmaster Quality

Application Summary:

Year Make/Model
1964-1966 Ford Mustang

Additional Information:

Fast Efficient Shipping

Through our distribution network Deliveries can be as fast as Next Day Delivery.
Delivery times vary by destination, tracking information is provided with every purchase.

Get it Installed

JB's Power Centre offers on-site professional installation services in Calgary and Edmonton, AB.
We have on staff licensed Mechanical Technicians as well as MECP Certified 12-Volt Technicians.

* Extend your products Manufacturer Warranty

All products include a manufacturer warranty, but you can extend this warranty with
JB's Purchase Protection Plan
*Available on select products.