1
of
8
Loading...
Flowmaster | SKU:
817940
Flowmaster American Thunder Crossmember-Back Exhaust System - 817940
Fits 1967-1972 Chevrolet/GMC K10, K15/K1500, K20, K25/K2500 4WD Trucks with V8 Engines, 2.50" 409 Stainless Steel
Regular price
$2,391.90 NZD
+ GST
Unit price
/
Unavailable
Shipping calculated at checkout.
Flowmaster American Thunder Crossmember-Back Exhaust System - 817940 is not in stock at Fast Lane Spares and will ship direct from supplier
⚠ Special Order Item — ships direct from supplier. No returns, exchanges, or cancellations once processed. Please allow 7–20 days shipping.
Stock Status:
Description
Description
Fits 1967-1972 Chevrolet/GMC K10, K15/K1500, K20, K25/K2500 4WD Trucks with V8 Engines, 2.50" 409 Stainless Steel
Part Number: 817940
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 and Benefits
• 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.
Part Number: 817940
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 and Benefits
• 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.
Specifications
Specifications
-
Specifications
Brand Flowmaster California Proposition 65 Yes California Proposition 65 Chemical Name Nickel (Metallic) California Proposition 65 Chemical Name Chromium (hexavalent compounds) CARB (California) Compliant Yes Catalytic Converter Included No Catalytic Converter Quantity 0 Category Exhaust Clamping Type Flat Band Clamps Included Yes Emission Code 5 Exhaust Series American Thunder Exhaust Tip Quantity 0 Exhaust Tip Quantity Sold Separately Exhaust Tip Shape Round Exit Style Dual Out Side Exit Style Dual Out Rear Finish Natural Gasket Or Seal Included No Grade Type Performance Hangers Included Yes Heat Shield Included No Inlet Type Weld-On Main Piping Diameter 2.50 Mount Type Uses New Hangers (Included) Mounting Bracket Included Yes Muffler (Left) Body Height 4.00 Muffler (Left) Body Length 13.25 Muffler (Left) Body Width 9.50 Muffler (Left) Type Chambered Muffler (Right) Body Height 4.00 Muffler (Right) Body Length 13.25 Muffler (Right) Body Width 9.50 Muffler (Right) Type Chambered Muffler Body Height 4.00 Muffler Body Length 13.25 Muffler Body Material 409 Stainless Steel Muffler Body Shape Oval Muffler Body Width 9.50 Muffler Color Black Muffler Finish Black High-Temperature Paint Finish Muffler Flanged Inlet No Muffler Flanged Outlet No Muffler Included Yes Muffler Inlet Connection Slip-Fit Muffler Inlet Inside Diameter 2.50 Muffler Inlet Location Offset Muffler Inlet Outside Diameter 2.63 Muffler Outlet Connection Slip-Fit Muffler Outlet Diameter 2.50 Muffler Outlet Quantity 1 Muffler Overall Length 19.50 Muffler Part Number Kit Only Muffler Quantity 2 Muffler Series Super 44 Muffler Type Reflection part type Exhaust System Pipe Color Silver Pipe Material 409 Stainless Steel Product Type Exhaust System Sound Level Aggressive / Moderate Spring Bolt Kit Included No Sub Category Exhaust and Tail Pipes Tail Pipe Outlet Outside Diameter 2.50 Tail Pipe Quantity 2 Tail Pipe Quantity Dual Tail Pipe Tapered Outlet No Type Crossmember-back Valve Included No Valve Type Not Applicable Warning California Proposition 65 -
Instructions
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
