1967-1972 Chevrolet and Exhaust Flowmaster Stainless Steel
SKU: 23200256153

1967-1972 Chevrolet and Exhaust Flowmaster Stainless Steel

Sale price$472.48 Regular price$524.98
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Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

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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: 23200256153

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    4.7 ★★★★★
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    Crazy Fish
    Grantham, US
    ★★★★★ 5
    Upgrade from our last one, nice box, easy to read and adjust. Standard plug
    Color: 301 Black, Color: 301 Black
    One of our old coffee mug warmers finally died and we were looking for a replacement - this is way better than the old one. It comes in a nice printed box - so great for a gift. Standard AC plug and really easy to see button on front. This one shows the temperature and that's handy. It's just the right size for a good sized coffee mug and keeps it warm for hours - if the coffee lasts that long. It's easy to see that it's on so I can turn it off, but it also has auto off if you forget. I'm not really sure what the silicon topper is for, but it sure does look nice. Easy to clean when turned off and I have to say it's pretty professional looking. It's a 30 watt model so it draws enough energy to keep that coffee warm and can heat up to 180 - that's too hot for my use but I'm sure you can warm something else with it. Overall: A huge upgrade from our last one. Easier to read, use and clean.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 27, 2025
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    Verified Purchase
    Christopher J. Amburn
    New York, US
    ★★★★★ 4
    Good mug warmer
    Color: 301 Black
    I like this mug warmer a lot. You can choose your temp and it keeps my tea very hot. I also like the auto shut off so I don't have the panic of "did I turn it off? My two minor complaints: 1. The rubber pad that comes with it doesn't stay in place and gets very hot. I just don't use it. 2. The controls are very sensitive. There are so many times that I pick up my mug and I change the temp or I change the timer because my finger brushed up against it. But, otherwise, it's a good value for the money.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 18, 2026
    S
    Verified Purchase
    Susanna
    Pawtucket, US
    ★★★★★ 5
    Excellent!
    Color: 301 Black, Color: 301 Black
    I love the square base, it means both large or small mugs fit with ease. And the build quality is good. It doesnt feel flimsy or lightweight. The touch buttons are easy and reactive, and the little screen is bright and easy to read. There are 6 heat settings ranging from 130-180°f, and twelve auto shut-off options, from 1 hour up to 12 hours! I picked this one both for the square, spacious base, and the fact that it goes up to 180°f. So many of the other options stuck to the 130-150 range, which I find just doesn't keep liquids warm at all. This one keeps them pretty warm - or warm enough. The cord is also longer than others I've had, I don't know the exact length (it's out of emeeach down the side of my desk at the moment lol) but I like that it's longer if I need to be in the future. It's not as cheap as some others ($19.99) but well worth the price!
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    Reviewed in the United States on January 31, 2026
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    Dianne Satkunas
    Lowell, US
    ★★★★★ 5
    Better than every other product I’ve used.
    Color: 301 Black
    I love this product - adjustable temperature control. Keeps my coffee or tea at the right temperatures.
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    Reviewed in the United States on May 10, 2026
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    Verified Purchase
    Dede
    Carnegie, US
    ★★★★★ 5
    I'll probably be buying another one for my husband.
    Color: 301 Yellow
    This warmer works very well. You can remove the silicone mat to accommodate larger cups if, like me, you like to use larges mugs. It has multiple temperatures that come in handy as you get to the bottom of your cup and want to reduce the temperature so the last few of sips aren't too hot.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 23, 2026

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