Flowmaster
Flowmaster 67-72 GM Truck 4WD American Thunder Crossmember-Back Exhaust System
Why this price?
$1,049.95 is MSRP, the lowest price Flowmaster lets us list it at. Additionally, Pro members get 3% to 35% back on most parts.
Special Order
This part is still available to order. Once you place your order, we’ll submit it directly to Flowmaster, and they’ll ship it straight to you.
Delivery times can vary depending on the brand, so we can’t guarantee an exact arrival date. What we can guarantee is that we’ll stay on top of your order, monitor its progress, and keep you updated until it reaches your door.
Special-order items are typically not kept in stock by most retailers. By ordering through us, your order is placed directly with Flowmaster, assuring you get the part as quickly as possible.
Want to get an estimated delivery timeframe before ordering? Contact us through our contact page, and we’ll be happy to find out for you.
Not sure it fits? Read our tips.
Fitment tips
Fitment can come down to more than year, make and model. Sometimes the sub-model decides, so start with the fitment table below.
- Drive type. If your car is all-wheel drive, make sure the part is for all-wheel drive, not rear-wheel drive.
- Engine size. For engine parts, make sure the engine size on the product matches your engine.
- Transmission. Manual and automatic cars often take different parts.
- Body style. Sedan or hatch, two-door or four-door, cab and bed length on trucks.
Manufacturer data can sometimes have imperfections. Still not sure? We are happy to help.
Send us a message and we will confirm the fit.
Couldn't load pickup availability
This Flowmaster American Thunder dual exhaust system is specifically designed for 1967-1972 Chevrolet and GMC K10, K15/K1500, K20, and K25/K2500 4wd trucks with V8 engines. The system is perfect for the person looking for an aggressive to moderate interior and exterior sound level. Starting at the Crossmember-Back, the exhaust comes complete with a built-in H-pipe crossover for better exhaust scavenging, all mandrel-bent 2.50-inch stainless steel tubing, a pair of Super 44 Series performance mufflers, and your choice of three tailpipe exits (Turndown behind rear tires, side exit behind rear tires, or straight out the back under the bumper). The system includes all hardware necessary for installation and is covered by our Lifetime Limited Warranty. Fits both short and long wheelbase trucks.
- Crossmember-Back Design Works with Stock Manifolds or Headers, Allowing More Application Options
- Three Different Tailpipe Exit Options Allow You to Tailor the Look of the Kit to Your Style
- Super 44 Mufflers Deliver Increased Performance and an Aggressive to Moderate Sound Level
- Mandrel-Bent Pipes Help to Maximize the Exhaust Flow for Better Performance
- 16-Gauge, 2.50-Inch 409 Stainless Steel Pipes add Durability and Strength
- H-Pipe Style Crossover Helps Exhaust Gas Scavenging and Reduces Drone
- Includes Hangers and Hardware for Installation
- Lifetime Limited Warranty
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1967-1972 | Chevrolet | K10 Pickup | Base |
| 1967-1972 | Chevrolet | K20 Pickup | Base |
| 1967-1972 | GMC | K15/K1500 Pickup | Base |
| 1967-1972 | GMC | K25/K2500 Pickup | Base |
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