1967-1972 Chevrolet and Exhaust Flowmaster Stainless Steel
SKU: 26043867605

1967-1972 Chevrolet and Exhaust Flowmaster Stainless Steel

Sale price$472.48 Regular price$524.98
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

1967-1972 Chevrolet and Exhaust Flowmaster Stainless SteelOverview: 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

Overview:

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:

  • Large 3.0-inch Mandrel bent pipes for superior flow and power
  • Flowmaster Flow FX series muffler offers increased performance
  • Powerful exhaust note with an aggressive to moderate sound level that’s a perfect balance of sound and power
  • Max power gains of 18 hp and 20 lb-ft at the rear wheels
  • 409 stainless steel constuction for extra durability
  • Connects directly to the factory dual tailpipes for a simple installation
  • Clears the factory spare tire with no restictive flattening like the factory tailpipe
  • Lifetime limited Warranty
  • Specs:

  • Brand: Flowmaster
  • CARB (California) Compliant: Yes
  • Catalytic Converter Included: No
  • Catalytic Converter Quantity: 0
  • Clamping Type: Flat Band
  • Clamps Included: Yes
  • Emission Code: 5
  • Exhaust Series: American Thunder
  • Exhaust Tip Quantity: 0
  • Exhaust Tip Shape: Round
  • Exit Style: 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: 2.5
  • Mount Type: Uses New Hangers (Included)
  • Mounting Bracket Included: Yes
  • Muffler (Left) Body Height: 4
  • Muffler (Left) Body Length: 13.25
  • Muffler (Left) Body Width: 9.5
  • Muffler (Left) Type: Chambered
  • Muffler (Right) Body Height: 4
  • Muffler (Right) Body Length: 13.25
  • Muffler (Right) Body Width: 9.5
  • Muffler (Right) Type: Chambered
  • Muffler Body Height: 4
  • Muffler Body Length: 13.25
  • Muffler Body Material: 409 Stainless Steel
  • Muffler Body Shape: Oval
  • Muffler Body Width: 9.5
  • 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: 2.5
  • Muffler Inlet Location: Offset
  • Muffler Inlet Outside Diameter: 2.63
  • Muffler Outlet Connection: Slip-Fit
  • Muffler Outlet Diameter: 2.5
  • Muffler Outlet Quantity: 1
  • Muffler Overall Length: 19.5
  • Muffler Part Number: Kit Only
  • Muffler Quantity: 2
  • Muffler Series: Super 44
  • Muffler Type: Reflection
  • Pipe Color: Silver
  • Pipe Material: 409 Stainless Steel
  • Sound Level: Aggressive / Moderate
  • Spring Bolt Kit Included: No
  • Tail Pipe Outlet Outside Diameter: 2.5
  • Tail Pipe Quantity: 2
  • Tail Pipe Tapered Outlet: No
  • Type: Crossmember-back
  • Valve Included: No
  • Valve Type: Not Applicable
  • Part Number: 817940
  • Applications:

    • 1967-1969 Chevrolet K10 Pickup 327 CID
    • 1967-1967 Chevrolet K10 Pickup 283 CID
    • 1968-1972 Chevrolet K10 Pickup 307 CID
    • 1968-1969 Chevrolet K10 Pickup 396 CID
    • 1969-1972 Chevrolet K10 Pickup 350 CID
    • 1970-1972 Chevrolet K10 Pickup 402 CID
    • 1967-1969 Chevrolet K20 Pickup 327 CID
    • 1967-1967 Chevrolet K20 Pickup 283 CID
    • 1968-1972 Chevrolet K20 Pickup 307 CID
    • 1968-1969 Chevrolet K20 Pickup 396 CID
    • 1969-1972 Chevrolet K20 Pickup 350 CID
    • 1970-1972 Chevrolet K20 Pickup 402 CID
    • 1967-1968 GMC K15/K1500 Pickup 327 CID
    • 1967-1967 GMC K15/K1500 Pickup 283 CID
    • 1968-1972 GMC K15/K1500 Pickup 307 CID
    • 1968-1969 GMC K15/K1500 Pickup 396 CID
    • 1969-1972 GMC K15/K1500 Pickup 350 CID
    • 1970-1972 GMC K15/K1500 Pickup 402 CID
    • 1967-1968 GMC K25/K2500 Pickup 327 CID
    • 1968-1972 GMC K25/K2500 Pickup 307 CID
    • 1968-1969 GMC K25/K2500 Pickup 396 CID
    • 1969-1972 GMC K25/K2500 Pickup 350 CID
    • 1970-1972 GMC K25/K2500 Pickup 402 CID

    Emissions:

    • This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 26043867605

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    4.4 ★★★★★
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    G
    Verified Purchase
    G.C.B.
    Lowell, US
    ★★★★★ 4
    A worthwhile addition to just butyl itself.
    Model: 197mil 31 sqft Car Sound Deadening Mat
    I used this as a topper to butyl sound deadening material on the floor and side panels and am very pleased. It was generally easy to use. It is very sticky and cannot be easily repositioned as the foam will separate from the sticky side if you try, but its not a big deal. I have yet to run the car but the panels are much quieter when tapped on vs just the butyl alone, and this stuff weighs almost nothing.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 17, 2026
    B
    Verified Purchase
    Bret Jackson
    Charlottesville, US
    ★★★★★ 5
    Good deadening
    Model: 197mil 31 sqft Car Sound Deadening Mat
    This sound deadening works well and has good adhesion .
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 18, 2026
    M
    Verified Purchase
    Mags
    Boise, US
    ★★★★★ 5
    Easy to install and great value.
    Model: 197mil 31 sqft Car Sound Deadening Mat
    Very easy to cut and install with the rollers I bought separately. It adheres well even though I was installing it when the weather was closer to 40-50 degrees. Definitely helps to deaden the sound from the bare sheet metal.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 2, 2026
    C
    Verified Purchase
    Chuck P
    Lowell, US
    ★★★★★ 1
    Garbage
    Model: 197mil 31 sqft Car Sound Deadening Mat
    Straight garbage, I tried to cut corners on cost of building an spl car and should have stuck with dynamat or something like that. This is NOT for sound deadening…… Garbage product!!!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 5, 2026
    S
    Verified Purchase
    Shopper
    Lowell, US
    ★★★★★ 3
    Not for me
    Model: 197mil 31 sqft Car Sound Deadening Mat
    Seemed “cheap” for my personal needs, so I returned it.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 23, 2026

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