Flowmaster
Flowmaster 817938 American Thunder Crossmember-Back Exhaust System
Flowmaster 817938 American Thunder Crossmember-Back Exhaust System
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Description & Features
Flowmaster 817938 American Thunder Crossmember-Back Exhaust System
This American Thunder exhaust system is specifically designed for 1967-1972 Ford F-100/F-250/F-350 2-wheel drive V8 trucks without a side mounted auxiliary fuel tank. The system is perfect for the person looking for an aggressive to moderate exterior and interior sound level. Starting just after the manifold downpipes, this exhaust system comes complete with a built-in H-pipe crossover and all mandrel bent 2.50-inch 409 stainless steel tubing that helps maximize the flow of the exhaust pulses for better performance and the added durability of stainless steel. The Super 44 Series performance mufflers will give any V8 a deep rumble with that classic Flowmaster tone. This system comes with your choice of three tailpipe exits, straight out the rear, side exit behind each rear tire, or dumped behind the rear tires. The system includes all hardware necessary for an at home installation. This exhaust system is covered by our Lifetime Limited Warranty. Fits both short and long wheelbase trucks.
- 3 Exit Options Allow You to Customize the Look of Your Truck
- 5-Inch Mandrel Bent Tubing Improves Exhaust Flow for Better Performance
- Super 44 Series Mufflers Give You a Deep, Classic Muscle Truck Sound
- H-Pipe Style Crossover Pipe Improves Performance and Reduces Interior Sound
- Includes all Necessary Hangers and Hardware for an at Home Installation
- 409 Stainless Steel adds Corrosion Resistance and Durability
- Backed by Flowmaster’s Lifetime Limited Warranty
Specifications
| Brand | Flowmaster |
| California Proposition 65 | Yes |
| California Proposition 65 Chemical Name | Nickel (Metallic) |
| CARB (California) Compliant | Yes |
| Catalytic Converter Included | No |
| Catalytic Converter Quantity | 0 |
| Category | Exhaust |
| Clamping Type | Flat Band |
| Clamps Included | Yes |
| Emission Code | 5 |
| Exhaust Series | American Thunder |
| Exhaust Tip Quantity | 0 |
| Exhaust Tip Shape | Round |
| Exit Style | Dual Out Rear |
| Finish | Natural |
| Gasket Or Seal Included | No |
| Grade Type | Performance |
| Hangers Included | Yes |
| Inlet Type | Clamp-On |
| Main Piping Diameter | 2.50 |
| Mount Type | Uses New Hangers (Included) |
| Mounting Bracket Included | Yes |
| Muffler (Left) Body Height | 4.00 |
| Muffler (Left) Body Length | 13.25 |
| Muffler (Left) Body Width | 9.50 |
| Muffler (Left) Type | Chambered |
| Muffler (Right) Body Height | 4.00 |
| Muffler (Right) Body Length | 13.25 |
| Muffler (Right) Body Width | 9.50 |
| Muffler (Right) Type | Chambered |
| Muffler Body Height | 4.00 |
| Muffler Body Length | 13.25 |
| Muffler Body Material | 409 Stainless Steel |
| Muffler Body Shape | Oval |
| Muffler Body Width | 9.50 |
| Muffler Color | Black |
| Muffler Finish | Black High-Temperature Paint Finish |
| Muffler Flanged Inlet | No |
| Muffler Flanged Outlet | No |
| Muffler Included | Yes |
| Muffler Inlet Connection | Slip-Fit |
| Muffler Inlet Inside Diameter | 2.50 |
| Muffler Inlet Location | Offset |
| Muffler Inlet Outside Diameter | 2.63 |
| Muffler Outlet Connection | Slip-Fit |
| Muffler Outlet Diameter | 2.50 |
| Muffler Outlet Location | Center |
| Muffler Outlet Quantity | 1 |
| Muffler Overall Length | 19.50 |
| Muffler Part Number | Kit Only |
| Muffler Quantity | 2 |
| Muffler Series | Super 44 |
| Muffler Type | Reflection |
| part type | Exhaust System |
| Pipe Color | Silver |
| Pipe Material | 409 Stainless Steel |
| Product Type | Exhaust System |
| Sound Level | Aggressive / Moderate |
| Spring Bolt Kit Included | No |
| Tail Pipe Outlet Outside Diameter | 2.50 |
| Tail Pipe Quantity | Dual |
| Tail Pipe Tapered Outlet | No |
| Type | Crossmember-back |
| Valve Included | No |
| Valve Type | Not Applicable |
| Warning | California Proposition 65 |
Packaging Information
Weight: 86.25 lbs
Dimensions: 48.9 x 24.5 x 14.5 IN
Safety
⚠ WARNING: This product can expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information visit www.P65Warnings.ca.gov
Warranty
Installation Instructions
⚠ Fitment Notes
- Does Not Fit Models With Auxiliary Side Mounted Fuel Tanks
- Fits Both Long And Short Wheelbases Does Not Fit Trucks with Side Mounted Auxiliary Fuel Tanks. Connector Pipes Not Included
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Vehicle Fitment
Vehicle Fitment
- 1967-1972 Ford F-100 Base
- 1967-1972 Ford F-250 Base
- 1967-1972 Ford F-350 Base
