CHEVROLET 5.3L/327 Flowmaster Exhaust Systems

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

Part Number: FLO-817654

4.56 out of 5 stars ( 18 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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

Part Number: FLO-817940

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Exhaust System, American Thunder, Header-Back, 409 Stainless Steel, 1963-66 Chevy/GMC, C10, Long and Short Bed, Straight /Side/Down Outlets, Kit

Part Number: FLO-817937

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Exhaust System, American Thunder, Header Back, Stainless Steel, GM A Body, Kit

Part Number: FLO-817409

3.62 out of 5 stars ( 13 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Exhaust System, American Thunder, 2.50 in. Diameter, Crossmember Back, Super 40, H-Pipe, Steel, Aluminized, Chevy, V8, Kit

Part Number: FLO-17655-FM

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Exhaust System, American Thunder, Header-back, Stainless, Two Mufflers, Split Rear Exit, Chevy, Pontiac, Kit

Part Number: FLO-817129

4.69 out of 5 stars ( 13 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Exhaust System, Header-Back, Stainless Steel, 2.5 in. Diameter, Buick, Chevy, Oldsmobile, Pontiac, Kit

Part Number: FLO-817158

4.11 out of 5 stars ( 9 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Exhaust System, American Thunder, Header-Back, Stainless Steel, GM A Body, Kit

Part Number: FLO-817412

3.2 out of 5 stars ( 5 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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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: Monday 3/16/2026 if shipped by air

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Exhaust System, American Thunder, Crossmember-Back, Steel, Aluminized, H-Pipe, Stainless Tips, Chevy, Pontiac, Kit

Part Number: FLO-17139

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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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: Monday 3/16/2026 if shipped by air

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Exhaust System, American Thunder, Dual, Header-Back, Split Side Exits, 2.5 in. Dia., w/H-Pipe and Mufflers, Steel, Aluminized, Chevy, GMC, Kit

Part Number: FLO-17120

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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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: Monday 3/16/2026 if shipped by air

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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: Monday 3/16/2026 if shipped by air

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