American Thunder Header Back Exhaust System; Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Super 44 Series™ Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel;
Flowmaster's American Thunder Crossmember-back exhaust system for the 73-87 GM C10/C20, ½ and 3/4 ton, 2WD 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 mandrel bent aluminized tubing and accommodates both dual and single exhaust crossmembers. 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 covered by Flowmaster's 3 Year Limited Warranty. This system is not emissions compliant on vehicles that were originally equipped with catalytic converters. Note: This system is not designed as a direct bolt-on and will require the user to fabricate pipes to connect to manifolds or headers.
- Limited Lifetime Warranty
- Premium Flowmaster Quality
- Famous Flowmaster sound
- Multiple Exit Options
- Patented Delta Flow Technology
- Made in the USA
- Made in the USA
- Moderate Exterior Exhaust Tone
- Incl. Hangers and Hardware For Easy Installation
- Header Back System
- Dual Out Rear Exit
- Dyno Tuned for Maximum Performance
Application Summary:
| Year |
Make/Model |
| 1975-1986 |
Chevrolet C20 |
| 1973-1974 |
Chevrolet C20 Pickup |
| 1987-1988 |
Chevrolet R20 |
| 1975-1978 |
GMC C25 |
| 1973-1974 |
GMC C25/C2500 Pickup |
| 1979-1986 |
GMC C2500 |
Additional Information:
