SKU: 91081427556

1959-1964 Chevrolet Biscayne Performance Muffler Flowmaster Stainless

Sale price$179.95 Regular price$199.95
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  • CAN

Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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Description

1959-1964 Chevrolet Biscayne Performance Muffler Flowmaster StainlessOverview: Flowmaster has taken the laminar core of our classic HP 2 muffler and wrapped it in a new compact square case. The new Super HP 2 Series muffler offers the same great performance benefits and moderate tone that you would expect from our laminar flow mufflers, now in a new sleek styling. These mufflers are available in either a 409S stainless steel case or a polishable 304S stainless steel case and in sizes ranging from 2. 00 in., 2. 25 in.

Overview:

Flowmaster has taken the laminar core of our classic HP-2 muffler and wrapped it in a new compact square case. The new Super HP-2 Series muffler offers the same great performance benefits and moderate tone that you would expect from our laminar flow mufflers, now in a new sleek styling. These mufflers are available in either a 409S stainless steel case or a polishable 304S stainless steel case and in sizes ranging from 2.00 in., 2.25 in. and 2.50 in. These mufflers are covered by Flowmaster's Lifetime Limited Warranty.

Features:

  • Stainless Steel Construction
  • Dyno Tuned For Maximum Performance
  • Lifetime Limited Warranty
  • Laminar Flow Technology
  • Specs:

  • Body Height: 4
  • Body Length: 18
  • Body Material: 409 Stainless Steel
  • Body Width: 5
  • 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
  • Muffler Series: HP-2 Series
  • Muffler Type: Laminar Flow
  • Outlet Connection: Slip-Fit
  • Outlet Inside Diameter: 2.5
  • Outlet Location: Center
  • Outlet Outside Diameter: 2.63
  • Outlet Quantity: 1
  • Outlet Type: Single
  • Overall Length: 24
  • Reversible: No
  • Shape: Oval
  • Sound Level: Moderate
  • Tunable: No
  • Universal Or Specific Fit: Universal
  • Part Number: 12518409
  • Applications:

    • 1959-1964 Chevrolet Biscayne 283 CID
    • 1959-1961 Chevrolet Biscayne 348 CID
    • 1961-1964 Chevrolet Biscayne 409 CID
    • 1962-1964 Chevrolet Biscayne 327 CID
    • 1963-1963 Chevrolet Biscayne 427 CID
    • 1959-1964 Chevrolet Bel Air 283 CID
    • 1961-1961 Chevrolet Bel Air 348 CID
    • 1962-1962 Chevrolet Bel Air 327 CID
    • 1959-1964 Chevrolet Impala 283 CID
    • 1959-1961 Chevrolet Impala 348 CID
    • 1961-1964 Chevrolet Impala 409 CID
    • 1962-1964 Chevrolet Impala 327 CID
    • 1963-1963 Chevrolet Impala 427 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: 91081427556

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    Deborah
    Boise, US
    ★★★★★ 5
    Nice fabric.
    Color: Red Gingham, Size: Large
    This was a well made shirt and the fabric was nice. However, I had to return the shirt because it was too small. I read the reviews which said it ran large. So, I ordered down a size, should not have done that. I believe it is true to size, but I’d not a fitter or modern cut.
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    Reviewed in the United States on April 16, 2026
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    Tyler S
    Lowell, US
    ★★★★★ 4
    Lightweight, travel ready shirt
    Color: Blue Plaid, Size: Medium
    Relaxed fit, quality fabric. Color was as expected. Material is pretty standard as well
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    Reviewed in the United States on April 23, 2026
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    denise bugg
    Dallas, US
    ★★★★★ 5
    Nice quality
    Color: Black Gingham, Size: X-Large
    This shirt is constructed well.
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    Reviewed in the United States on May 31, 2026
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    Jose Nunez
    Charlottesville, US
    ★★★★★ 3
    Buen Producto
    Color: Green Gingham, Size: X-Large
    Los colores no son los mismos de la foto
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    Reviewed in the United States on May 30, 2026
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    Gay Newson
    Louisville, US
    ★★★★★ 5
    Shirt
    Color: Yellow Gingham, Size: X-Large
    True fit very nice
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    Reviewed in the United States on June 4, 2026

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