Buick Gran Sport Exhaust System

Flowmaster American Thunder Exhaust System

Flowmaster's American Thunder exhaust system is designed with the latest technology to provide better performance. This system offers improved acceleration and passing power as well as increased fuel mileage. Engineered and dyno-tested for each application, the tubes in each kit are mandrel-bent for superior air flow and are made to deliver an aggressive exhaust tone.

Specifications:

• Header-back system
• Dual exit, split rear
• 2.5 in. piping diameter
• Single inlet and outlet muffler configuration
• Moderate sound level
• H-pipe, mounting hardware included

• Mandrel-bent tubing
• Includes all required mounting hardware

Note:

Fits the following 1965-1967 Buick Gran Sport submodels:

• 1967-1967: All Submodels; All Engines;
• 1967-1967: Base; 8 Cyl 5.6L;

• 1965-1966: Base; 8 Cyl 6.6L;

Fits 1 more submodels. (Show all) Show less info

• Includes hangers and hardware for easy installation
• Constructed from mandrel bent 16 gauge aluminized tubing
• Has aggressive exterior exhaust tone
• Dyno tuned for maximum performance
• Made in the USA
• Special Note: Contains H-Pipe; Tail pipe in turn down style

As a solution to the problem of excessive noise experienced in Californian racing events back in 1983, Flowmaster creator Ray Flugger designed and patented the first racing silencers that maintained engine power. At present, Flowmaster is still at the forefront of muffler and exhaust system technology. With its superior Research and Development arm, Flowmaster is able to manufacture high performance mufflers, exhaust systems, and accessories that produce tone and sound levels that suit the customer's preferences.

Fits the following 1965-1967 Buick Gran Sport submodels:

• 1967-1967: All Submodels; All Engines;
• 1967-1967: Base; 8 Cyl 5.6L;

• 1965-1967: Base; 8 Cyl 6.6L;

Fits 1 more submodels. (Show all) Show less info

• Includes hangers and hardware for easy installation
• Constructed from mandrel bent 16 gauge aluminized tubing
• Has aggressive exterior exhaust tone
• Dyno tuned for maximum performance
• Made in the USA
• Special Note: Contains H-Pipe; Tail pipe in turn down style

As a solution to the problem of excessive noise experienced in Californian racing events back in 1983, Flowmaster creator Ray Flugger designed and patented the first racing silencers that maintained engine power. At present, Flowmaster is still at the forefront of muffler and exhaust system technology. With its superior Research and Development arm, Flowmaster is able to manufacture high performance mufflers, exhaust systems, and accessories that produce tone and sound levels that suit the customer's preferences.

Fits the following 1965-1967 Buick Gran Sport submodels:

• 1967-1967: All Submodels; All Engines;
• 1967-1967: Base; 8 Cyl 5.6L;

• 1965-1967: Base; 8 Cyl 6.6L;

Fits 1 more submodels. (Show all) Show less info