Flowmaster 17654 American Thunder Dual Rear Side Exit Header Back System with Moderate Aggressive Sound
Product Description
Flowmaster 17654 American Thunder Dual Rear Side Exit Header Back System with Moderate Aggressive Sound
- Super 44 Series Mufflers for Deep Powerful Sound
- Mandrel-bent 16-gauge Aluminized Steel Tubing
- Includes Hangers and Hardware for Installation
- Aggressive to Moderate Exterior Exhaust Tone
- Crossmember-Back True Dual Exhaust System
- H-pipe Crossover for Maximum Power
- Does Not Include Header Reducers or Downpipes for Factory Manifolds
- Four Choices of Tailpipe Exits
Flowmaster's American Thunder crossmember-back exhaust system for the 1967 - 1972 GM C10/C15 1/2 ton 2WD (coil spring) pickup truck is perfect for the person looking for moderate to aggressive sound levels with all of the performance benefits that you would expect from Flowmaster. This crossmember-back DOR/DOS (dual out rear/dual out side) system features dual Super 44 series mufflers, 2.50 inch mandrel bent aluminized tubing and all the hardware necessary for a great fitting installation. Stainless tips sold separately. This system is routed in a fashion that accommodates both long and short wheelbases with automatic or manual transmissions, and provides adequate clearance for substantially lowered vehicles. The exhaust system is manufactured in USA and is covered by Flowmaster's 3 year limited warranty.







