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OPGI Price: $684.99
Part Type: (P) High Performance, designed to improve performance
Sold As: SET
2017 Grand Prix Catalog Page: 275
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Any package that measures over 48” in length, and/or 30” in width or height, is subject to an additional handling surcharge of $12.95 per package. Unusually shaped packages such as cylinders or drums are also subject to this charge, as are unusual exterior packaging materials such as plastic or cloth.
As one of the most powerful exhaust systems for Grand Prixs with large displacement engines, the Flowmaster “American Thunder” system features heavy-gauge mandrel-bent tubing and “Super 40 Series” mufflers. The tailpipes included are two-piece and install easily. The kit also features an adjustable crossover pipe to fit a variety of applications and has all the hangers and clamps that fit in the factory locations. Part# CH40001 exits the tailpipes behind the rear wheels pointed at the ground, while the part# 17119 and CH40002 exit out the back at the bumper. Get the power and sound of performance with the Flowmaster American Thunder exhaust system.