Flowmaster American Thunder Crossmember-Back Exhaust System 817940

Name: Flowmaster American Thunder Crossmember-Back Exhaust System 817940
Brand: Flowmaster
SKU: 4016809
Price: 1304.99 CAD
Availability: InStock

$1,304.99 ea

NEWARRIVING SOONEstimated Ship Date 12/10/2024 (If Ordered Today)19 Available from HOLLEY PERFORMANCE PRODUCTS as of 11/24/2024

Model: 4016809

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Description Vehicle Fitment Downloads Video Specifications Reviews (0) Product Q&A Related Products

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

Manifold down pipes and header reducers not included. Fits both long and short bed trucks.

Installation Notes:

Manifold down pipes and header reducers not included. Fits both long and short bed trucks.

About Flowmaster

Manufacturer of performance exhaust systems, mufflers, performance air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.

Downloads:

Download Name	File Size
fm_warranty_general.pdf	88.58KB
817940_instructions.pdf	3.92MB

Videos:

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.

Make	Model	Submodel	Years	Engine
Chevrolet	K10 Pickup	Base	1967	5.3L / 327 / V8 4.6L / 283 / V8
Chevrolet	K10 Pickup	Base	1968	5.3L / 327 / V8 5.0L / 307 / V8 6.5L / 396 / V8
Chevrolet	K10 Pickup	Base	1969	5.3L / 327 / V8 5.0L / 307 / V8 5.7L / 350 / V8 6.5L / 396 / V8
Chevrolet	K10 Pickup	Base	1970	6.6L / 402 / V8 5.0L / 307 / V8 5.7L / 350 / V8
Chevrolet	K10 Pickup	Base	1971	6.6L / 402 / V8 5.0L / 307 / V8 5.7L / 350 / V8
Chevrolet	K10 Pickup	Base	1972	6.6L / 402 / V8 5.0L / 307 / V8 5.7L / 350 / V8
Chevrolet	K20 Pickup	Base	1967	4.6L / 283 / V8 5.3L / 327 / V8
Chevrolet	K20 Pickup	Base	1968	5.0L / 307 / V8 6.5L / 396 / V8 5.3L / 327 / V8
Chevrolet	K20 Pickup	Base	1969	5.0L / 307 / V8 5.7L / 350 / V8 6.5L / 396 / V8 5.3L / 327 / V8
Chevrolet	K20 Pickup	Base	1970	5.0L / 307 / V8 5.7L / 350 / V8 6.6L / 402 / V8
Chevrolet	K20 Pickup	Base	1971	5.0L / 307 / V8 5.7L / 350 / V8 6.6L / 402 / V8
Chevrolet	K20 Pickup	Base	1972	5.0L / 307 / V8 5.7L / 350 / V8 6.6L / 402 / V8
GMC	K15/K1500 Pickup	Base	1967	4.6L / 283 / V8 5.3L / 327 / V8
GMC	K15/K1500 Pickup	Base	1968	6.5L / 396 / V8 5.0L / 307 / V8 5.3L / 327 / V8
GMC	K15/K1500 Pickup	Base	1969	6.5L / 396 / V8 5.7L / 350 / V8 5.0L / 307 / V8
GMC	K15/K1500 Pickup	Base	1970	6.6L / 402 / V8 5.7L / 350 / V8 5.0L / 307 / V8
GMC	K15/K1500 Pickup	Base	1971	6.6L / 402 / V8 5.7L / 350 / V8 5.0L / 307 / V8
GMC	K15/K1500 Pickup	Base	1972	6.6L / 402 / V8 5.7L / 350 / V8 5.0L / 307 / V8
GMC	K25/K2500 Pickup	Base	1967	5.3L / 327 / V8
GMC	K25/K2500 Pickup	Base	1968	5.0L / 307 / V8 5.3L / 327 / V8 6.5L / 396 / V8
GMC	K25/K2500 Pickup	Base	1969	5.7L / 350 / V8 5.0L / 307 / V8 6.5L / 396 / V8
GMC	K25/K2500 Pickup	Base	1970	5.7L / 350 / V8 5.0L / 307 / V8 6.6L / 402 / V8
GMC	K25/K2500 Pickup	Base	1971	5.7L / 350 / V8 5.0L / 307 / V8 6.6L / 402 / V8
GMC	K25/K2500 Pickup	Base	1972	5.7L / 350 / V8 5.0L / 307 / V8 6.6L / 402 / V8

Specifications:

California Proposition 65 Chemical Name	Chromium (hexavalent compounds), Nickel (Metallic)
California Proposition 65 Required	Yes
Emission Code	5
Exhaust Series	American Thunder
Exit Position	DOR/S
Heat Shield	No
Material	409 Stainless Steel
Mount Type	Uses New Hangers (Included)
Muffler Body Length (in)	13.5
Muffler Color	Black
Muffler Finish	Painted
Muffler Inlet Diameter (in)	2.5
Muffler Inlet Location	Offset
Muffler Material	409S Stainless Steel
Muffler Outlet Diameter (in)	2.5
Muffler Overall Length (in)	19.5
Muffler Part Number	Kit Only
Muffler Quantity	2
Muffler Series	Super 44
Muffler Shape	Oval
Muffler Type	Reflection
Part Type	Exhaust System Kit
Product Type	Exhaust System
Proposition 65	www.P65Warnings.ca.gov
Single Dual	Dual
Sound Level	Aggressive / Moderate
System Type	Crossmember-back
Tip Style	Not Included
Tubing Diameter (in)	2.5
Tubing Material	409S Stainless Steel

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Flowmaster American Thunder Crossmember-Back Exhaust System 817940

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