Flowmaster flo17654 American Thunder Crossmember-Back Exhaust System
Flowmaster flo17654 American Thunder Crossmember-Back Exhaust System
Flowmaster -
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- Does Not Include Header Reducers or Downpipes for Factory Manifolds
- Super 44 Series Mufflers for Deep Powerful Sound
- Includes Hangers and Hardware for Installation
- Mandrel-bent 16-gauge Aluminized Steel Tubing
- Aggressive to Moderate Exterior Exhaust Tone
- Crossmember-Back True Dual Exhaust System
- H-pipe Crossover for Maximum Power
- Four Choices of Tailpipe Exits
The Flowmaster American Thunder crossmember-back exhaust system is designed for 1967–1972 Chevrolet and GMC C10 and C15 1/2-ton, two-wheel-drive trucks with coil spring suspension and a V8 engine. It delivers an aggressive-to-moderate interior and exterior exhaust tone, making it suitable for drivers seeking a deep, powerful sound from their classic truck.
The system features mandrel-bent 2.50-inch, 16-gauge aluminized steel tubing, a built-in H-pipe crossover and a pair of Super 44 Series performance mufflers. Four tailpipe exit configurations are available: slightly angled down for larger rear bumpers, straight out beneath the rear bumper, out the sides behind the rear tires, or dump style behind the rear tires at body level. It fits both short- and long-wheelbase trucks and provides adequate clearance for substantially lowered vehicles.
Installation hardware and hangers are included. This system does not include exhaust tips, header reducer cones or downpipes for factory manifolds. The exhaust system is covered by Flowmaster's 3-year Limited Warranty. Fitment includes 1967–1972 Chevrolet C10 Pickup models and 1967–1970 GMC C15/C1500 Pickup models as listed in the available fitment data.
What's Included: Crossmember-back exhaust system, H-pipe crossover, two Super 44 Series mufflers, hangers and installation hardware.
Features:
- Sound: Super 44 Series mufflers provide a deep, powerful exhaust tone with an aggressive-to-moderate exterior sound.
- Construction: Mandrel-bent 2.50-inch, 16-gauge aluminized steel tubing supports consistent exhaust flow.
- Crossover: Built-in H-pipe crossover is designed to support exhaust performance.
- Configuration: Crossmember-back true dual exhaust system for compatible Chevrolet and GMC trucks.
- Tailpipe Exits: Four exit choices include angled-down, straight-out, side-exit and dump-style configurations.
- Fitment: Designed for 1967–1972 Chevrolet and GMC C10/C15 1/2-ton, two-wheel-drive trucks with coil spring suspension and V8 engines; fits short- and long-wheelbase trucks.
- Installation: Hangers and installation hardware are included.
- Exclusions and Coverage: Exhaust tips, header reducer cones and factory-manifold downpipes are not included; covered by a 3-year Limited Warranty.
Fitments:
1967 Chevrolet C10 Pickup Base
1967 GMC C15/C1500 Pickup Base
1968 Chevrolet C10 Pickup Base
1968 GMC C15/C1500 Pickup Base
1969 Chevrolet C10 Pickup Base
1969 GMC C15/C1500 Pickup Base
1970 Chevrolet C10 Pickup Base
1970 GMC C15/C1500 Pickup Base
1971 Chevrolet C10 Pickup Base
1971 GMC C15/C1500 Pickup Base
1972 Chevrolet C10 Pickup Base
1972 GMC C15/C1500 Pickup Base
| Air Freight Prohibited: false |
| Not Carb Approved: false |
| Carb Acknowledgement Required: true |
| Ltl Freight Required: false |
| Prop 65: N |
| Part Type: automotive |
| Epa: N/A |
| Regular Stock: t |
| Units Per Sku: 1 |
Fitments
Fitments
Materials
Materials
Shipping & Returns
Shipping & Returns
Dimensions
Dimensions
Care Instructions
Care Instructions
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