$125 Off

Flowmaster 817940 American Thunder Crossmember-Back Exhaust

$125 Off

#378817940

Flowmaster 817940 American Thunder Crossmember-Back Exhaust

Name: Flowmaster 817940 American Thunder Crossmember-Back Exhaust
Brand: Flowmaster
SKU: 378817940
Price: 999.95 USD
Availability: InStock

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Product Summary

Direct Fit Exhaust System Kit Type

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Key Specs

MFG. Part #	817940
Brand	Flowmaster
Exhaust System Kit Type	Direct Fit

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Flowmaster 817940 Details

This Flowmaster American Thunder dual exhaust system is specifically designed for 1967-1972 Chevrolet and GMC K10, K15/K1500, K20, and K25/K2500 4wd trucks with V8 engines. The system is perfect for the person looking for an aggressive to moderate interior and exterior sound level. Starting at the crossmember-back, the exhaust comes complete with a built-in H-pipe crossover for better exhaust scavenging, all mandrel-bent 2.50-inch stainless steel tubing, a pair of Super 44 Series performance mufflers, and your choice of three tailpipe exits (Turndown behind rear tires, side exit behind rear tires, or straight out the back under the bumper). The system includes all hardware necessary for installation and is covered by our Lifetime Limited Warranty. Fits both short and long wheelbase trucks.

Features:

Crossmember-Back Design Works with Stock Manifolds or Headers, Allowing More Application Options

16-Gauge, 2.50-Inch 409 Stainless Steel Pipes add Durability and Strength

Super 44 Mufflers Deliver Increased Performance and an Aggressive to Moderate Sound Level

Three Different Tailpipe Exit Options Allow You to Tailor the Look of the Kit to Your Style

Mandrel-Bent Pipes Help to Maximize the Exhaust Flow for Better Performance

H-Pipe Style Crossover Helps Exhaust Gas Scavenging and Reduces Drone

Includes Hangers and Hardware for Installation

Lifetime Limited Warranty

Guides & Documents

Exhaust System Kits Installation Instructions (378817940)

Exhaust System Kits Warranty (378817940)

CA Prop 65

Flowmaster 817940 Specifications

KEY SPECS
MFG. Part #	817940
Brand	Flowmaster
Exhaust System Kit Type	Direct Fit

Ratings & Reviews

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Fitment

1968 Chevy Bel Air

Gen 1 L14 Small Block Chevy

1970-1972 Chevy Bel Air

402 Chevy Big Block V8

1968 Chevy Biscayne

Gen 1 L14 Small Block Chevy

1970-1972 Chevy Biscayne

402 Chevy Big Block V8

1969-1973 Chevy Blazer

Gen 1 L14 Small Block Chevy

1969 Chevy Brookwood

Gen 1 L14 Small Block Chevy

1970-1972 Chevy Brookwood

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1968-1969 Chevy C10

Gen 1 L14 Small Block Chevy

1970-1972 Chevy C10

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1973 Chevy C10

Gen 1 L14 Small Block Chevy

1983 Chevy C10

2-Piece Rear Main Chevy 350

1985 Chevy C10

2-Piece Rear Main Chevy 350

1968-1969 Chevy C10 Suburban

Gen 1 L14 Small Block Chevy

1970-1972 Chevy C10 Suburban

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1973 Chevy C10 Suburban

Gen 1 L14 Small Block Chevy

1983 Chevy C10 Suburban

2-Piece Rear Main Chevy 350

1985 Chevy C10 Suburban

2-Piece Rear Main Chevy 350

1968-1969 Chevy C20

Gen 1 L14 Small Block Chevy

1970-1972 Chevy C20

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1973 Chevy C20

Gen 1 L14 Small Block Chevy

1968-1969 Chevy C20 Suburban

Gen 1 L14 Small Block Chevy

1970-1972 Chevy C20 Suburban

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1973 Chevy C20 Suburban

Gen 1 L14 Small Block Chevy

1968-1969 Chevy C30

Gen 1 L14 Small Block Chevy

1970-1972 Chevy C30

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1973 Chevy C30

Gen 1 L14 Small Block Chevy

1969 Chevy Camaro

Gen 1 L14 Small Block Chevy

1970-1972 Chevy Camaro

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1973 Chevy Camaro

Gen 1 L14 Small Block Chevy

1968-1969 Chevy Caprice

Gen 1 L14 Small Block Chevy

1970-1972 Chevy Caprice

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1973 Chevy Caprice

Gen 1 L14 Small Block Chevy

1983 Chevy Caprice

2-Piece Rear Main Chevy 350

1985 Chevy Caprice

2-Piece Rear Main Chevy 350

1968-1969 Chevy Chevelle

Gen 1 L14 Small Block Chevy

1970-1972 Chevy Chevelle

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1973 Chevy Chevelle

Gen 1 L14 Small Block Chevy

1968 Chevy Chevy II

Gen 1 L14 Small Block Chevy

1985 Chevy Corvette

2-Piece Rear Main Chevy 350

1968-1969 Chevy El Camino

Gen 1 L14 Small Block Chevy

1970-1972 Chevy El Camino

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1973 Chevy El Camino

Gen 1 L14 Small Block Chevy

1978-1979 Chevy El Camino

2-Piece Rear Main Chevy 350

1983 Chevy El Camino

2-Piece Rear Main Chevy 350

1969 Chevy Estate

Gen 1 L14 Small Block Chevy

1970 Chevy Estate

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1968-1969 Chevy G10 Van

Gen 1 L14 Small Block Chevy

1970 Chevy G10 Van

2-Piece Rear Main Chevy 350
Gen 1 L14 Small Block Chevy

1971-1973 Chevy G10 Van

Gen 1 L14 Small Block Chevy

1968-1973 Chevy G20 Van

Gen 1 L14 Small Block Chevy

1970 Chevy G30 Van

2-Piece Rear Main Chevy 350

1968-1969 Chevy Impala

Gen 1 L14 Small Block Chevy

1970-1972 Chevy Impala

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1973 Chevy Impala

Gen 1 L14 Small Block Chevy

1983 Chevy Impala

2-Piece Rear Main Chevy 350

1985 Chevy Impala

2-Piece Rear Main Chevy 350

1968-1969 Chevy K10

Gen 1 L14 Small Block Chevy

1970-1972 Chevy K10

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1973 Chevy K10

Gen 1 L14 Small Block Chevy

1968-1969 Chevy K10 Suburban

Gen 1 L14 Small Block Chevy

1970-1972 Chevy K10 Suburban

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1973 Chevy K10 Suburban

Gen 1 L14 Small Block Chevy

1968-1969 Chevy K20

Gen 1 L14 Small Block Chevy

1970-1972 Chevy K20

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1973 Chevy K20

Gen 1 L14 Small Block Chevy

1968-1969 Chevy K20 Suburban

Gen 1 L14 Small Block Chevy

1970-1972 Chevy K20 Suburban

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1973 Chevy K20 Suburban

Gen 1 L14 Small Block Chevy

1968-1969 Chevy K30

Gen 1 L14 Small Block Chevy

1970-1972 Chevy K30

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1973 Chevy K30

Gen 1 L14 Small Block Chevy

1970-1974 Chevy K5 Blazer

2-Piece Rear Main Chevy 350

1983 Chevy K5 Blazer

2-Piece Rear Main Chevy 350

1985 Chevy K5 Blazer

2-Piece Rear Main Chevy 350

1969 Chevy Kingswood

Gen 1 L14 Small Block Chevy

1970-1972 Chevy Kingswood

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1973 Chevy Laguna

Gen 1 L14 Small Block Chevy

1976 Chevy Laguna

2-Piece Rear Main Chevy 350

1973 Chevy Malibu

Gen 1 L14 Small Block Chevy

1970-1971 Chevy Monte Carlo

2-Piece Rear Main Chevy 350
402 Chevy Big Block V8

1972 Chevy Monte Carlo

402 Chevy Big Block V8

1973-1975 Chevy Monte Carlo

2-Piece Rear Main Chevy 350

1982-1983 Chevy Monte Carlo

2-Piece Rear Main Chevy 350

1969 Chevy Nova

Gen 1 L14 Small Block Chevy

1970 Chevy Nova

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1971-1973 Chevy Nova

Gen 1 L14 Small Block Chevy

1975 Chevy Nova

2-Piece Rear Main Chevy 350

1980-1983 Chevy P30

2-Piece Rear Main Chevy 350

1985 Chevy P30

2-Piece Rear Main Chevy 350

1968-1969 Chevy P30 Van

Gen 1 L14 Small Block Chevy

1970 Chevy P30 Van

2-Piece Rear Main Chevy 350

1972 Chevy P30 Van

402 Chevy Big Block V8

1973 Chevy P30 Van

Gen 1 L14 Small Block Chevy

1969 Chevy Townsman

Gen 1 L14 Small Block Chevy

1970-1972 Chevy Townsman

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy

1967 GMC C15/C1500 Suburban

2-Piece Rear Main Chevy 350

1980-1984 GMC C1500

2-Piece Rear Main Chevy 350

1980-1986 GMC C1500 Suburban

2-Piece Rear Main Chevy 350

1968-1972 GMC C25/C2500 Pickup

Gen 1 L14 Small Block Chevy

1968-1972 GMC C25/C2500 Suburban

Gen 1 L14 Small Block Chevy

1968-1972 GMC C35/C3500 Pickup

Gen 1 L14 Small Block Chevy

1978-1987 GMC Caballero

2-Piece Rear Main Chevy 350

1975-1978 GMC G15

2-Piece Rear Main Chevy 350

1967-1974 GMC G15/G1500 Van

2-Piece Rear Main Chevy 350

1979-1986 GMC G1500

2-Piece Rear Main Chevy 350

1975-1978 GMC G25

2-Piece Rear Main Chevy 350

1967-1974 GMC G25/G2500 Van

2-Piece Rear Main Chevy 350

1979-1986 GMC G2500

2-Piece Rear Main Chevy 350

1975-1978 GMC G35

2-Piece Rear Main Chevy 350

1967 GMC G35/G3500 Van

2-Piece Rear Main Chevy 350

1970-1974 GMC G35/G3500 Van

2-Piece Rear Main Chevy 350

1979-1986 GMC G3500

2-Piece Rear Main Chevy 350

1974-1977 GMC Jimmy

2-Piece Rear Main Chevy 350

1983-1984 GMC Jimmy

2-Piece Rear Main Chevy 350

1979-1984 GMC K1500

2-Piece Rear Main Chevy 350

1968-1972 GMC K25/K2500 Pickup

Gen 1 L14 Small Block Chevy

1968-1972 GMC K25/K2500 Suburban

Gen 1 L14 Small Block Chevy

1979-1984 GMC K2500

2-Piece Rear Main Chevy 350

1968-1972 GMC K35/K3500 Pickup

Gen 1 L14 Small Block Chevy

1971-1972 GMC Sprint

402 Chevy Big Block V8

1967 GMC Suburban

402 Chevy Big Block V8
Gen 1 L14 Small Block Chevy