Flowmaster American Thunder Exhaust Systems

4.36 out of 5 stars 544 Customer Reviews

Flowmaster American Thunder exhaust systems are designed with the latest exhaust technology available--resulting in improved acceleration, passing power, and fuel m

Flowmaster American Thunder exhaust systems are designed with the latest exhaust technology available--resulting in improved acceleration, passing power, and fuel mileage. A key to these performance upgrades is Flowmaster's use of mandrel-bent tubing, which allows superior exhaust gas flow. The systems also feature mufflers (single or dual) that deliver plenty of the rich Flowmaster sound you expect. Components are built from stainless steel or aluminized steel; and some models include tips. American Thunder exhausts are available in more than a hundred configurations for fitment on specific truck and car application

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Flowmaster American Thunder Exhaust Systems 17119

Exhaust System, American Thunder, Dual, Crossmember Back, Split Rear, 2.5 in. Dia., w/H-Pipe and Mufflers, Steel, Aluminized, GM, A-Body, Kit

Part Number: FLO-17119

4.27 out of 5 stars ( 37 )

Estimated Ship Date: Today

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Flowmaster American Thunder Exhaust Systems 817940

Exhaust System, American Thunder, Crossmember back, Dual, Stainless, Split Rear/Split Side Exit, Chevy, GMC, Kit

Part Number: FLO-817940

Not Yet Reviewed

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Flowmaster American Thunder Exhaust Systems for 1967-1972 C10 PICKUP, C15/C1500 PICKUP - 817654

Exhaust System, American Thunder, Header-back, Dual, Stainless, Split Rear/Split Side Exit, Chevy, GMC, Kit

Part Number: FLO-817654

4.59 out of 5 stars ( 17 )

Estimated Ship Date: Today

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Flowmaster American Thunder Exhaust Systems for 1967-1968 CAMARO, FIREBIRD - 17129

Exhaust System, American Thunder, Header-Back, Steel, Aluminized, Chevy, Pontiac, Kit

Part Number: FLO-17129

4.23 out of 5 stars ( 22 )

Estimated Ship Date: Today

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Flowmaster American Thunder Exhaust Systems 17742

Exhaust System, American Thunder, Header-back, Dual, Steel, Aluminized, Split Rear Exit, Chevy, GMC, Kit

Part Number: FLO-17742

4.11 out of 5 stars ( 9 )

Estimated Ship Date: Today

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Flowmaster American Thunder Exhaust Systems for 1967-1969 CAMARO, FIREBIRD - 17201

Exhaust System, American Thunder, Header-back, Steel, Aluminized, H-Pipe, Chevy, Pontiac, Kit

Part Number: FLO-17201

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Today

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Flowmaster American Thunder Exhaust Systems 17104

Exhaust System, American Thunder, Header-Back, Steel, Aluminized, Chevy, Pontiac, Kit

Part Number: FLO-17104

3.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Flowmaster American Thunder Exhaust Systems for 1970-1974 CAMARO, FIREBIRD - 17149

Exhaust System, American Thunder, Header-Back, Aluminized Steel, H-Pipe, Chevy, Pontiac, Kit

Part Number: FLO-17149

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Flowmaster American Thunder Exhaust Systems for 1967-1972 F-100, F-250, F-350 - 817938

Exhaust System, American Thunder, Header-Back, Stainless Steel, Ford, Standard Cab, Kit

Part Number: FLO-817938

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Flowmaster American Thunder Exhaust Systems 17200

Exhaust System, American Thunder, Header-Back, Steel, Aluminized, Buick, Chevy, Oldsmobile, Pontiac, A-Body

Part Number: FLO-17200

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Flowmaster American Thunder Exhaust Systems for 1967-1972 C10 PICKUP, C15/C1500 PICKUP - 17654

Exhaust System, American Thunder, Header-back, Steel, Aluminized, Split Rear/Split Side Exit, Chevy, GMC, Kit

Part Number: FLO-17654

4.33 out of 5 stars ( 12 )

Estimated Ship Date: Today

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Flowmaster American Thunder Exhaust Systems 17202

Exhaust System, American Thunder, Header-back, Steel, Aluminized, H-Pipe, Chevy, Pontiac, Kit

Part Number: FLO-17202

4.63 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Flowmaster American Thunder Exhaust Systems for 1967-1972 F-100, F-250, F-350 - 817934

Exhaust System, Crossmember Back, Dual, 2.50 in., Ford, Kit

Part Number: FLO-817934

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Flowmaster American Thunder Exhaust Systems for 1987-1996 F-150 - 17471

Exhaust, American Thunder, Cat-Back, Steel, Aluminized, Polished Stainless Tips, Ford, Pickup, 4.9, 5.0, 5.8L

Part Number: FLO-17471

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Nov 17, 2025 if ordered today

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Estimated Ship Date: Nov 17, 2025 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ Cat-Back Exhaust Systems for 1980-1996 F-150, F-250 - SUM-684455

4.5 out of 5 stars ( 14 )

Estimated Ship Date: Today

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Flowmaster American Thunder Exhaust Systems for 1994-2002 RAM 3500, RAM 2500, 1994-2001 RAM 1500 - 17429

Exhaust System, American Thunder, CatBack, Steel, Aluminized, Polished Tips, Dodge, Pickup, 5.2, 5.9L, Kit

Part Number: FLO-17429

4.29 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Flowmaster American Thunder Exhaust Systems for 1999-2004 MUSTANG - 17248

Exhaust, American Thunder, Cat-Back, Steel, Aluminized, Polished Stainless Tips, Ford, Kit

Part Number: FLO-17248

Not Yet Reviewed

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Flowmaster American Thunder Exhaust Systems for 1966-1967 FAIRLANE - 17289

Exhaust, American Thunder, Header-Back, Steel, Aluminized, H-Pipe, Polished Tips, Kit

Part Number: FLO-17289

1.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Flowmaster American Thunder Exhaust Systems for 1994-2002 RAM 3500, RAM 2500, 1994-2001 RAM 1500 - 17171

Exhaust System, American Thunder, Cat-Back, Steel, Aluminized, Dodge, Pickup, 5.2, 5.9L

Part Number: FLO-17171

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Flowmaster American Thunder Exhaust Systems for 2004-2015 TITAN - 17406

Exhaust System, American Thunder, Cat-Back, Steel, Aluminized, Polished Stainless Tips, for Nissan, 5.6L, Kit

Part Number: FLO-17406

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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