Flowmaster American Thunder Exhaust Systems

4.37 out of 5 stars 545 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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Results 1 - 25 of 37

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: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

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: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems for 1986-1993 MUSTANG - 17213

Exhaust System, American Thunder, CatBack, Steel, Aluminized, Original Style Tips, Ford, 5.0L, Kit

Part Number: FLO-17213

4.61 out of 5 stars ( 18 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems for 1986-1991 CAMARO, FIREBIRD - 17234

Exhaust, American Thunder, Cat-Back, Steel, Aluminized, Polished Stainless Tips, 5.0, 5.7L, Kit

Part Number: FLO-17234

4.53 out of 5 stars ( 15 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems for 1994-1997 MUSTANG - 17212

Exhaust, American Thunder, Cat-Back, Steel, Aluminized, Original Style Tips, Ford, 4.6, 5.0L, Kit

Part Number: FLO-17212

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems 17395

Exhaust, American Thunder, CatBack, Steel, Aluminized, Pol. Tips, Chevy, GMC, Pickup, 4.8, 5.3L, Kit

Part Number: FLO-17395

4.83 out of 5 stars ( 12 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems for 1986-1991 CAMARO, FIREBIRD - 17233

Exhaust, American Thunder, Cat-Back, Steel, Aluminized, Polished Stainless Tips, 5.0, 5.7L, Kit

Part Number: FLO-17233

4.2 out of 5 stars ( 10 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

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 18, 2025 if ordered today

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Estimated Ship Date: Nov 18, 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: Monday 10/27/2025

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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: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems for 1987-1993 MUSTANG - 17116

Exhaust System, American Thunder, Cat-Back, Steel, Aluminized, Ford, 5.0L, Kit

Part Number: FLO-17116

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems 17428

Exhaust, American Thunder, CatBack, Steel, Aluminized, Polished Tips, Chevy, GMC, Pickup, 3 door, 4.8, 5.3L

Part Number: FLO-17428

3.5 out of 5 stars ( 10 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems 17470

Exhaust, American Thunder, Cat-Back, Steel, Aluminized, Polished Stainless Tips, Chevy, GMC, Small Block, Kit

Part Number: FLO-17470

4.11 out of 5 stars ( 9 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems 17224

Exhaust System, American Thunder, Cat-Back, Steel, Aluminized, Chevy, GMC, 5.7, 7.4L, Kit

Part Number: FLO-17224

4.13 out of 5 stars ( 8 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems for 1995-1997 CAMARO, FIREBIRD - 17133

Exhaust System, American Thunder, 80 Series Muffler, Cat-Back, Steel, Aluminized, Kit

Part Number: FLO-17133

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems for 1992-1994 BLAZER, 1992-1995 YUKON - 17162

Exhaust System, American Thunder, Cat-Back, Steel, Aluminized, Chevy, GMC, 5.7L Kit

Part Number: FLO-17162

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems for 1999-2002 SIERRA 2500, SILVERADO 2500 - 17325

Exhaust System, American Thunder, Cat-Back, Steel, Aluminized, Heat Shield, Tip, Chevy, GMC, Pickup 2500, 6.0L

Part Number: FLO-17325

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems for 2016-2023 TACOMA - 817719

Exhaust System, American Thunder, Cat-back, Single In/Dual Out, Stainless Steel, Natural, Toyota, 3.5L, Kit

Part Number: FLO-817719

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems 17328

Exhaust System, Force II, Cat-Back, Steel, Aluminized, Polished Tip, Chevy, GMC, Pickup, 6.0, 8.1L

Part Number: FLO-17328

4.39 out of 5 stars ( 18 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems for 1967-1970 MUSTANG - 17282

Exhaust, American Thunder, Split Rear, Steel, Aluminized, Ford, Kit

Part Number: FLO-17282

4.47 out of 5 stars ( 15 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems for 1999-2004 MUSTANG - 17312

Exhaust, American Thunder, Cat-Back, Steel, Aluminized, Polished Stainless Tips, Ford, 4.6L, Kit

Part Number: FLO-17312

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems for 1994-1997 MUSTANG - 17112

Exhaust System, American Thunder, Cat-Back, Steel, Aluminized, Ford, 4.6, 5.0L, Kit

Part Number: FLO-17112

4.13 out of 5 stars ( 8 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems for 2025 1500 - 818204

Exhaust System, American Thunder, Dual Exit, Rear, Stainless, Ram, Kit

Part Number: FLO-818204

Not Yet Reviewed

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems for 1998-2002 CAMARO, FIREBIRD - 17199

Exhaust, American Thunder, Cat-Back, Steel, Aluminized, Stainless Tips, Chevy, Pontiac, 5.7L, Kit

Part Number: FLO-17199

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

Flowmaster American Thunder Exhaust Systems for 2011-2018 SIERRA 1500, SILVERADO 1500 - 817602

Exhaust System, American Thunder, Cat-back, Single In/Dual Out, Stainless Steel, Natural, Split Rear/Split Side Exit, Chevy, GMC, 6.2L, Kit

Part Number: FLO-817602

3.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

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: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

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