Flowmaster 67-70 Mustang American Thunder Under Valance Exhaust System

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, a pair of specially selected Super 44 Series performance mufflers for a deep powerful sound. The 2.50-inch mandrel-bent tailpipes feature a slight turndown at the rear bumper and the system includes all hangers and hardware necessary for installation. 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 with a Lifetime Limited Warranty, check out exhaust system# 817282. Notes: This system Does Not fit convertibles, cars with staggered shocks or exhaust cutouts in the rear valance. Does Not include header reducer cones or downpipes for factory manifolds.

• Does Not Include Header Reducers or Downpipes for Factory Manifolds
• H-pipe Crossover for Maximum Power with a Deep Tone
• Super 44 Series Mufflers for Deep Powerful Sound
• Includes Hangers and Hardware for Installation
• Mandrel-bent 16-gauge Aluminized Steel Tubing
• Moderate to Aggressive Exterior Exhaust Tone
• Crossmember-Back True Dual Exhaust System
• 3-Year Limited Warranty

Vehicle Fitment

• 1967-1970 Ford Mustang

Please verify exact fitment for your trim and engine before ordering.

Manufacturer Part Number: 17282

Images are for illustrative purposes only. Actual product may vary.

⚠ WARNING (California Proposition 65): This product can expose you to chemicals which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.