This Flowmaster American Thunder dual exhaust system is tailor-made for 1967-1972 Chevrolet and GMC K10, K15/K1500, K20, and K25/K2500 4wd trucks equipped with V8 engines. If you're after a sound that strikes a balance between aggressive and moderate, this system is just what you need. Starting from the crossmember-back, it features a built-in H-pipe crossover that enhances exhaust scavenging, along with durable, mandrel-bent 2.50-inch stainless steel tubing. You’ll also find a pair of Super 44 Series performance mufflers included, plus you can choose from three tailpipe exit styles: turndown behind the rear tires, side exit behind the rear tires, or straight out the back under the bumper. Everything you need for installation is included, and you can rest easy knowing it's backed by our Lifetime Limited Warranty. This system fits both short and long wheelbase trucks.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Vehicle Make/Model | Year | Trims |
|---|---|---|
| Chevrolet C10 Panel | 1967 | Base |
| Chevrolet C10 Pickup | 1967-1972 | Base |
| Chevrolet C20 Panel | 1967 | Base |
| Chevrolet C20 Pickup | 1967-1972 | Base |
| Chevrolet C30 Pickup | 1968-1971 | Base |
| Chevrolet K10 Pickup | 1967-1972 | Base |
| Chevrolet K20 Panel | 1967 | Base |
| Chevrolet K20 Pickup | 1967-1972 | Base |
| Chevrolet K30 Pickup | 1968-1971 | Base |

Flowmaster is an aftermarket company that was founded in 1983. The company specializes in manufacturing high-performance exhaust systems for various vehicles. This includes classic muscle cars, modern sedans, trucks, jeeps, off-road vehicles, and more.
It has since revolutionized the industry and has continued its tradition to produce high-quality exhaust parts. Today, Flowmaster has been the go-to brand of many car builders and enthusiasts worldwide and has been the market leader for years.
Pushing the Boundaries of Exhaust DesignFlowmaster has been the pioneer when it comes to developing mufflers. They produce mufflers that are quiet enough to be used legally on the streets but, at the same time, does not restrict the performance of the engine. This is why more and more people are choosing Flowmaster for their car builds as they can enjoy their vehicles on and off the streets.
An Exhaust For Any StyleThe company provides its customers with the ability to choose the type of muffler they want. They offer five sound categories of their exhaust system, from quiet and discrete to something more aggressive and gives that racy sound. They can also choose between 12 designs of chambered mufflers, including their exclusively-designed “laminar-flow” muffler or “straight-through.”They also have a custom-built exhaust system for that one-of car builds.
Passionate Development TeamFlowmaster is composed of people who have years of experience in developing quality exhaust systems. Using the knowledge they acquired over the years, they improved their designs and matched it with the ever-growing technological advancement of vehicles today.
Tried and TestedWith hundreds of installs under its belt, Flowmaster has proven itself to be a brand that delivers what it promised. In addition, all their exhaust systems are designed and dyno-tested, ensuring that they can maximize your vehicle’s performance once installed.
Purchase Flowmaster at Vivid RacingIf you are in the market for an upgrade in your vehicle’s exhaust that would provide you with that distinct sound and improved performance, then Flowmaster is the brand for you. To know more about Flowmaster, visit Vivid Racing and check out their list of products that fit your requirement.