Flowmaster American Thunder Exhaust for Chevrolet/GMC | FLO186348
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- Have a different car? See all Flowmaster American Thunder Header-Back Exhausts
- Mild interior drone and aggressive exterior tone
- Catalog Number: Flowmaster 17742
- Fits: Chevrolet C20, Chevrolet R20, GMC C2500 (check fitment chart for compatibility)
Flowmaster American Thunder Header-Back Exhaust | 17742
Product Specifications:
- Diameter (IN): 2-1/2 Inch
- Exhaust Tip Material: No Tip
- Exhaust Tip Size (IN): No Tip
- Exhaust Tip Type: No Tip
- Exhaust Type: Dual
- Exit Position: Rear
- Includes Exhaust Pipe Muffler Delete: No
- Includes Exhaust Tip: No
- Includes Hardware: Yes
- Includes Muffler: Yes
- Material: Steel
- Muffler Brand: Super 44 Series
- Muffler Configuration: Single Inlet/ Single Outlet
- Muffler Quantity: 2
- Outlet Type: Dual
- Required Welding: No
- Sound Level: Moderate/ Aggressive
- Type: Header-Back
Fitment Chart:
| Years | Make | Model | Submodel | Body Type | Bed Length | Liters | Cylinders | Notes |
|---|---|---|---|---|---|---|---|---|
| 1988 | Chevrolet | R20 | Custom Deluxe | Crew Cab Pickup | 8' 0" Foot Bed | 5.0L | V8 | Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Super 44 Series(TM) Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel; Intended For Race Use Only |
| 1987 | Chevrolet | R20 | Crew Cab Pickup | 8' 0" Foot Bed | 5.7L | V8 | Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Super 44 Series(TM) Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel; Intended For Race Use Only | |
| 1987 | Chevrolet | R20 | Crew Cab Pickup | 8' 0" Foot Bed | 5.0L | V8 | Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Super 44 Series(TM) Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel; Intended For Race Use Only | |
| 1987 | Chevrolet | R20 | Crew Cab Pickup | 8' 0" Foot Bed | 6.2L | V8 | Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Super 44 Series(TM) Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel; Intended For Race Use Only | |
| 1987 | Chevrolet | R20 | Crew Cab Pickup | 8' 0" Foot Bed | 7.4L | V8 | Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Super 44 Series(TM) Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel; Intended For Race Use Only | |
| 1982-1986 | Chevrolet | C20 | Crew Cab Pickup | 8' 0" Foot Bed | 6.2L | V8 | Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Super 44 Series(TM) Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel; Intended For Race Use Only; Not Legal For Use On Vehicles Originally Equipped w/Catalytic Converter | |
| 1979-1986 | GMC | C2500 | Crew Cab Pickup | 8' 0" Foot Bed | L | Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Super 44 Series(TM) Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel; Intended For Race Use Only; Not Legal For Use On Vehicles Originally Equipped w/Catalytic Converter | ||
| 1977-1986 | Chevrolet | C20 | Crew Cab Pickup | 8' 0" Foot Bed | 5.0L | V8 | Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Super 44 Series(TM) Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel; Intended For Race Use Only; Not Legal For Use On Vehicles Originally Equipped w/Catalytic Converter | |
| 1975-1986 | Chevrolet | C20 | Crew Cab Pickup | 8' 0" Foot Bed | 5.7L | V8 | Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Super 44 Series(TM) Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel; Intended For Race Use Only; Not Legal For Use On Vehicles Originally Equipped w/Catalytic Converter | |
| 1975-1986 | Chevrolet | C20 | Crew Cab Pickup | 8' 0" Foot Bed | 7.4L | V8 | Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Super 44 Series(TM) Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel; Intended For Race Use Only; Not Legal For Use On Vehicles Originally Equipped w/Catalytic Converter | |
| 1976-1980 | Chevrolet | C20 | Crew Cab Pickup | 8' 0" Foot Bed | 6.6L | V8 | Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Super 44 Series(TM) Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel; Intended For Race Use Only; Not Legal For Use On Vehicles Originally Equipped w/Catalytic Converter |
Chevrolet C20 exhaust system
The Flowmaster 17742 American Thunder header-back is a complete dual exhaust system. It gives your vehicle a smooth exhaust flow with an aggressive exterior tone. It is designed to perform and give you the ultimate driving experience.
Unrestricted air flow
It features a mandrel-bent tubing that allows easy and unrestricted airflow. This ensures a smooth exhaust flow, reduced internal resonance and a mild interior tone for an enjoyable driving experience.
Unmatched performance
The system is dyno tuned for optimal performance with reduced flow restrictions and internal resonance. This means that you get the best out of it without sacrificing a quiet and enjoyable drive.
Easy installation on your Chevrolet C20
The exhaust system comes with a full bolt-on fitment with factory mounting points for an easy installation. It also comes with all installation hardware and a detailed manual. For the best fitment, let a professional do the installation.
Made strong to last long on your Chevrolet C20
The components are made with tough steel. Expert engineers weld and process them with advanced technology to make sure that you get the value for your money. The exhaust system is virtually indestructible.
Manufacturer's guarantee of quality
Flowmaster provides a limited lifetime warranty for every purchase of the stainless steel exhaust system. The aluminized steel system comes with a three-year warranty. It is an assurance of superior quality and excellent performance.
Proudly made in the USA
The Flowmaster 17742 American Thunder header back exhaust system is proudly made in the USA with local labor and materials. The company employs thousands of American professionals every year and makes its contribution to the growth of the economy.