SKU: 12820612220

1981-1986 Chevrolet K10 Performance Muffler Flowmaster Stainless Steel

Sale price$92.22 Regular price$102.47
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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

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Description

1981-1986 Chevrolet K10 Performance Muffler Flowmaster Stainless SteelOverview: The Super 50 series muffler is a larger version of Flowmaster's 50 series Delta Flow muffler. Originally designed for trucks and SUV's, it is also well suited to muscle car and high performance applications. In addition, the larger case size significantly reduces interior resonance and provides a deep, rich tone along with mileage and power gains. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability. Features:

Overview:

The Super 50 series muffler is a larger version of Flowmaster's 50 series Delta Flow® muffler. Originally designed for trucks and SUV's, it is also well suited to muscle car and high performance applications. In addition, the larger case size significantly reduces interior resonance and provides a deep, rich tone along with mileage and power gains. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.

Features:

  • Provides Maximum Off Roading Clearance
  • Mandrel-bent 409 Stainless Steel Tubing
  • Uses the Factory Hanger Locations
  • All Stainless Steel Construction
  • Moderate Sound Level
  • Flowmaster Quality
  • Easy Installation
  • Specs:

  • Body Height: 5
  • Body Length: 17
  • Body Material: Aluminized Steel
  • Body Width: 10
  • Brand: Flowmaster
  • Clamps Included: No
  • Color: Black
  • Emission Code: 5
  • Exhaust Tip Quantity: 0
  • Finish: High-Temperature Paint
  • Fitment: Universal
  • Grade Type: Performance
  • Hanger Included: No
  • Heat Shield Attached: No
  • Inlet Connection: Slip-Fit
  • Inlet Diameter: 2.5
  • Inlet Inside Diameter: 2.5
  • Inlet Location: Center
  • Inlet Outside Diameter: 2.63
  • Inlet Quantity: 1
  • Inlet Type: Weld-On
  • Mount Type: Uses New Hangers (Not Included)
  • Muffler Series: Super 50 Series
  • Muffler Type: Chambered
  • Outlet: Dual
  • Outlet Connection: Slip-Fit
  • Outlet Inside Diameter: 2.25
  • Outlet Location: Dual
  • Outlet Outside Diameter: 2.38
  • Outlet Quantity: 2
  • Outlet Type: Dual
  • Overall Length: 23
  • Reversible: No
  • Shape: Oval
  • Sound Level: Mild
  • Tunable: No
  • Universal Or Specific Fit: Universal
  • Part Number: 525552
  • Applications:

    • 1981-1986 Chevrolet K10 350 CID
    • 1981-1986 Chevrolet K10 305 CID
    • 1985-1986 Chevrolet K10 262 CID
    • 1987-1987 Chevrolet R10 262 CID
    • 1987-1987 Chevrolet R10 350 CID
    • 1987-1987 Chevrolet R10 305 CID
    • 1987-1987 Chevrolet R10 Suburban 350 CID
    • 1987-1987 Chevrolet R10 Suburban 305 CID
    • 1981-1986 GMC C1500 350 CID
    • 1981-1986 GMC C1500 305 CID
    • 1985-1986 GMC C1500 262 CID
    • 1981-1986 GMC K1500 305 CID
    • 1981-1986 GMC K1500 350 CID
    • 1985-1986 GMC K1500 262 CID
    • 1987-1987 GMC R1500 262 CID
    • 1987-1987 GMC R1500 305 CID
    • 1987-1987 GMC R1500 350 CID
    • 1987-1987 GMC R1500 379 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: 12820612220

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    4.2 ★★★★★
    Based on 5 reviews
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    Product Reviews
    J
    Verified Purchase
    J. Randle
    Grantham, US
    ★★★★★ 5
    Love them
    Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
    I wear a size 11.5 in ladies shoe and these just barely fit. Butttt after I put lotion on my feet and slipped these on and left them on for about 30 mins. It left my feet really soft! They work great as intended. Would buy again
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 31, 2026
    V
    Verified Purchase
    Vonda Kioultzopoulos
    Boise, US
    ★★★★★ 3
    Effective but may be uncomfortable
    Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
    I have eczema on my feet and use a prescription cream that I leave on overnight. I often have a problem sleeping in socks but the silicone feels cool on my feet. The only drawback I have is the opening of the socks feel very tight around my ankles making them uncomfortable on me. I wish the opening was a bit more flexible.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on September 20, 2025
    T
    Verified Purchase
    Tessy
    Phoenix, US
    ★★★★★ 1
    Burned my already sensitive feet, too big
    Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
    Feels icky, and the heat gets trapped and literally felt like my feet were being burned by these. The bottoms of these feel prickly and they are way too big. You have to sit still and cannot walk in them.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 22, 2026
    M
    Verified Purchase
    Ms. Mac
    Lowell, US
    ★★★★★ 5
    Just as good as paraffin wax
    Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
    I might prefer these socks over paraffin wax. They are comfy and very moisturizing. I use these socks once a week to keep the heels and soles of my feet moisturized between pedicures. I rinse with warm, soapy water then hang to dry. They are hard to walk in, but there's a saying printed in the socks that's says something to the effect of "take a break, stay off your feet" lol I love that as a reminder to put my feet up and relax
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 9, 2026
    S
    Verified Purchase
    SKI
    Grantham, US
    ★★★★★ 5
    Love these!
    Color: Pink & Beige, Size: Small(fits up to size 7)
    Love these! As I write this review, I’m sitting in my recliner with these on. I have had other silicone socks in the past and would like to share a few of the things that I have learned. These fit great! The others were 2-3 sizes too big because you could not order a size. I wear a size 7 women’s shoe. I got the smaller size. I walked around my apartment in my old ones and they got kinda yucky. Now, I sit in my recliner, put them on and chill for a few hours. I now take them off and put in a ziplock bag so they stay nice and clean (no cat hair!). I use them once a week usually on Saturday or Sunday as I’m a working girl. Also, I use Auqaphor before I put them on and put cotton socks on after I’m finished. Your feet will be SO soft. This is not a one and done…I do this every week especially during sandal season! I know this was lengthy and I hope you got some tips.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 25, 2026

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