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Aero Chamber Muffler

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Product Information

  • Brand Name
    Hooker (Holley)
  • Part Number
    21721HKR
  • APIN
    AGZ1AUu4
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    Description

    The all aluminized and stainless steel Aero Chamber is designed to do much more than simply muffle exhaust noise. The Aero Chamber Muffler produces a deep throaty powerful sound that will not change with time. The Hooker Aero Chamber uses a unique step principal, similar to that which is currently popular in racing header design. The aerodynamically designed chambers flow 23% better and produce more horsepower and torque than the most popular high performance brand.

    Item Specifications

    • Installation InstructionsDownload 1, Download 2
    • Shape:Oval
    • Material:Aluminized Steel
    • Outlet Type:Dual Outlet
    • Inlet Type:Single Offset
    • Body Height:4.75 in.
    • Body Length:20.00 in.
    • Body Width:10.25 in.
    • Inlet Connection Type:Pipe
    • Inlet Inside Diameter:2.25 in.
    • Inlet Outside Diameter:2.50 in.
    • Inlet Position:Offset
    • Muffler Count:1.00
    • Outlet Outside Diameter:2.25 in.,\/,2.500,in.
    • Outlet Position:Offset
    • Overall Length:24.00 in.
    • Part Number:21721HKR
    • Country Of Manufacture:China
    • UPC:700414052373
    • Weight:15.90
    • Brand:Hooker (Holley)
    • Features:Single 2.5 in. Offset Inlet\/Dual 2.25 in. Outlets Stepped Accel. Chamber Increase Exhaust Gas Velocity\/Max Flow Three Internal Bulk Heads For Superior Case Durability\/Stability 16 Gauge Aluminized Steel Case OE Mounting Provisions Reinforced Inlets and Outlets Stainless Steel Perforated Plate Eliminates Internal Rust Aerodynamic Lens Directs Sound Pressure Waves Into Accel. Chamber Sound Absorption Chamber Eliminates High Frequency Sound Waves Deep Throaty Powerful Sound Resonance Chamber and Tuning Tube Cancels Unwanted Frequencies
    • California Proposition 65 Warning:WARNING: Cancer and Reproductive Harm - https://www.p65warnings.ca.gov/
    Important Notes : Aero Chamber Muffler\n Replacement\n Black Finish\n Offset 2.5 in. Inlet\n Dual 2.25 in. Outlet

    VEHICLE FITMENT

    Select Year
    Select Make
    Select Model
    Select SubModel
    Select Engine
    YearMakeModelSubmodelEngine
    1999ChevroletCamaroBase3.8L V6
    1999ChevroletCamaroZ285.7L V8
    1999ChevroletCamaroZ28 SS5.7L V8
    1998ChevroletCamaroBase3.8L V6
    1998ChevroletCamaroZ285.7L V8
    1998ChevroletCamaroZ28 SS5.7L V8
    1997ChevroletCamaroBase3.8L V6
    1997ChevroletCamaroRS3.8L V6
    1997ChevroletCamaroZ285.7L V8
    1996ChevroletCamaroBase3.8L V6

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