1964-1966 Ford Mustang Exhaust Flowmaster Stainless Steel
SKU: 71239696764

1964-1966 Ford Mustang Exhaust Flowmaster Stainless Steel

Sale price$449.98 Regular price$499.98
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Description

1964-1966 Ford Mustang Exhaust Flowmaster Stainless SteelOverview: This American Thunder Crossmember Back exhaust system is custom designed for the 1964 1966 Ford Mustang and is perfect for the person looking for a complete 2. 50 inch dual exhaust system with a moderately aggressive exterior tone, and a moderate interior sound. With easy fit in mind, these 16 gauge aluminized steel systems feature all mandrel bent tubing, an H pipe to equalize the exhaust pressures and a pair of specially selected 40 Series

Overview:

This American Thunder® Crossmember-Back exhaust system is custom designed for the 1964-1966 Ford Mustang and is perfect for the person looking for a complete 2.50-inch dual exhaust system with a moderately aggressive exterior tone, and a moderate interior sound. With easy fit in mind, these 16-gauge aluminized steel systems feature all mandrel-bent tubing, an H-pipe to equalize the exhaust pressures and a pair of specially selected 40 Series Delta Flow performance mufflers for a deep powerful sound. The mandrel-bent 2.50-inch tailpipes tuck up out of the way for maximum clearance and the last few feet is all polished stainless steel for a show car look. Like all Flowmaster® systems, benefits include improved throttle response, power, and mileage. Designed for an easy fit, these systems include all necessary parts, hardware and instructions for an easy installation. The system is covered by our 3-year Limited Warranty. Connects to existing header collector reducer cones or manifold downpipes(not included.) If you prefer a full stainless steel system with a Lifetime Limited Warranty, check out exhaust system #817273. Notes: For non GT and hardtop models.

Features:

  • 2.50 and 3.00-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
  • A 4.00-inch black ceramic coated tip adds a custom look to the truck
  • Includes complete hardware and factory styled hangers in the stock location for an easy installation
  • Flow FX “stright through” performance muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow
  • Backed by Flowmaster’s Lifetime Limited Warranty
  • Max gains of 6 hp and 5 lb.ft. of torque at the rear wheels
  • Specs:

  • Brand: Flowmaster
  • CARB (California) Compliant: Yes
  • Catalytic Converter Included: No
  • Catalytic Converter Quantity: 0
  • Clamping Type: U-Bolt
  • Clamps Included: Yes
  • Emission Code: 5
  • Exhaust Series: American Thunder
  • Exhaust Tip Connection: Welded
  • Exhaust Tip Cut: Angled
  • Exhaust Tip Edge: Slash Cut
  • Exhaust Tip Finish: Polished
  • Exhaust Tip Material: 304 Stainless Steel
  • Exhaust Tip Quantity: 2
  • Exhaust Tip Shape: Round
  • Exit Style: Dual Out Rear
  • Finish: Aluminized
  • Gasket Or Seal Included: No
  • Grade Type: Performance
  • Hangers Included: Yes
  • Heat Shield Included: No
  • Inlet Diameter: 2.5
  • Inlet Type: Weld-On
  • Main Piping Diameter: 2.5
  • Mounting Bracket Included: Yes
  • Muffler (Left) Body Height: 4
  • Muffler (Left) Body Length: 13
  • Muffler (Left) Body Width: 9.75
  • Muffler (Left) Type: Chambered
  • Muffler (Right) Body Height: 4
  • Muffler (Right) Body Length: 13
  • Muffler (Right) Body Width: 9.75
  • Muffler (Right) Type: Chambered
  • Muffler Body Height: 4
  • Muffler Body Length: 13
  • Muffler Body Material: Aluminized Steel
  • Muffler Body Shape: Oval
  • Muffler Body Width: 9.75
  • 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 Outside Diameter: 2.63
  • Muffler Outlet Connection: Slip-Fit
  • Muffler Outlet Quantity: 1
  • Muffler Part Number: 942541
  • Muffler Quantity: 2
  • Muffler Series: 40 Series Delta Flow
  • Muffler Type: Chambered
  • Pipe Color: Silver
  • Pipe Material: Aluminized 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: 17273
  • Applications:

    • 1964-1966 Ford Mustang 289 CID
    • 1964-1965 Ford Mustang 260 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: 71239696764

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    GypsySoul
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    ★★★★★ 5
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    Color: Dark Green, Size: Small
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    Reviewed in the United States on February 7, 2026
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    JB
    Lake Worth, US
    ★★★★★ 1
    Still soft but looks terrible after 1 wash. Save your money
    Color: White, Size: Small, Color: White, Size: Small
    Update: sweater looked great when I received. After 1 wash it looks terrible. Looks like it’s been washed too many times, material fuzzy and piled. After wearing it once, it snagged and the knit pulled through. I would NOT recommend. I had such high hopes. Save your money. Very nice sweater, especially for the price! I love the details of the buttons on the sleeves. It is SO soft. It’s not super thick as I can see my skin through it when pressing my hand up against fabric. However, it’s not see through when wearing it. It’ll be perfect in cooler weather and perfect in the winter with a coat but won’t cause me to overheat when in a heated environment. I do feel like it runs big. I could have sized down a size. Although I’m not sure if it’ll shrink after a wash or two.
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    Reviewed in the United States on September 22, 2025
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    Lynn M
    Natrona Heights, US
    ★★★★★ 3
    Disappointed.
    Color: Blue, Size: Large, Color: Blue, Size: Large
    This sweater is so comfortable and very soft. It fits well in a flattering, oversized way. But after one wash it is pilled everywhere which makes it look old and shabby. It’s at a price point where I feel compelled to return it.
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    Reviewed in the United States on January 10, 2026
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    TripletMama Heather
    Charlottesville, US
    ★★★★★ 5
    Perfect for casual wear and dressy style
    Color: Dark Green, Size: Small
    This sweater is soooo soft and the color is so rich. The fit of it is perfect, not too tight and not too baggy, just right and I used the size guide to pick my size. Just for reference, I am 5'3" and 130lbs, 38C bust. It's well made and washes great. I chose to hang dry mine as I typically don't put any of my sweaters in the dryer to dry, just to fluff them. I have this one in two colors, the green and the tan/beige and I would say they are both a true representative of the color shown.
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    Reviewed in the United States on November 15, 2025
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    MMF
    Lake Worth, US
    ★★★★★ 5
    Love the long sleeves!!!
    Color: White, Size: Small
    Love it! I'm 5' 11" tall and I purchased this according to reviews. Several people commented on the length of the sleeves. I have a hard time finding sleeves long enough if it's not " tall" sized. It was perfect for me. If this washes nice I'm going to consider purchasing more in other colors. I ordered the white and just love the long ribbed cuffs with the line of buttons. Very soft.
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    Reviewed in the United States on May 1, 2026

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