Flowmaster American Thunder Crossmember-Back Exhaust System - 817940

Flowmaster American Thunder Crossmember-Back Exhaust System - 817940

$1,049.95
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Flowmaster American Thunder Crossmember-Back Exhaust System - 817940

Flowmaster American Thunder Crossmember-Back Exhaust System - 817940

$1,049.95
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

Product Specifications:

  • Product Details: Fits 1967-1972 Chevrolet/GMC K10, K15/K1500, K20, K25/K2500 4WD Trucks with V8 Engines, 2.50" 409 Stainless Steel
  • California Proposition 65: Yes
  • California Proposition 65 Chemical Name: Chromium (hexavalent compounds), Nickel (Metallic)
  • CARB (California) Compliant: Yes
  • Catalytic Converter Included: No
  • Catalytic Converter Quantity: 0
  • Clamping Type: Flat Band
  • Clamps Included: Yes
  • Exhaust Series: American Thunder
  • Exhaust Tip Quantity: 0
  • Exhaust Tip Shape: Round
  • Exit Style: Dual Out Rear, Dual Out Side
  • 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 IN
  • Mount Type: Uses New Hangers (Included)
  • Mounting Bracket Included: Yes
  • Muffler (Left) Body Height: 4.00 IN
  • Muffler (Left) Body Length: 13.25 IN
  • Muffler (Left) Body Width: 9.50 IN
  • Muffler (Left) Type: Chambered
  • Muffler (Right) Body Height: 4.00 IN
  • Muffler (Right) Body Length: 13.25 IN
  • Muffler (Right) Body Width: 9.50 IN
  • Muffler (Right) Type: Chambered
  • Muffler Body Height: 4.00 IN
  • Muffler Body Length: 13.25 IN
  • Muffler Body Material: 409 Stainless Steel
  • Muffler Body Shape: Oval
  • Muffler Body Width: 9.50 IN
  • 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 IN
  • Muffler Inlet Location: Offset
  • Muffler Inlet Outside Diameter: 2.63 IN
  • Muffler Outlet Connection: Slip-Fit
  • Muffler Outlet Diameter: 2.50 IN
  • Muffler Outlet Quantity: 1
  • Muffler Overall Length: 19.50 IN
  • 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
  • Tail Pipe Outlet Outside Diameter: 2.50 IN
  • Tail Pipe Quantity: 2, Dual
  • Tail Pipe Tapered Outlet: No
  • Type: Crossmember-back
  • Valve Included: No
  • Valve Type: Not Applicable

Installation Notes:

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

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