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Hooker Headers 21002 - Hooker Headers Sidetube Slip-In Mufflers



Hooker Headers 21002 - Hooker Headers Sidetube Slip-In Mufflers
Hooker Headers 21002 - Hooker Headers Sidetube Slip-In Mufflers

JEGS Part Number: 520-21002

4'' Sidetube Slip-In Mufflers
  • Small Block Reverse Flow

    Hooker Headers 21002 Details

    Slip-In Mufflers

  • Long Lasting
  • Easily Removed For Racing
  • Quieter Than Glasspack
  • High Level Of Sound Control
  • Will Not Restrict Engine Efficiency

  • Hooker Headers Sidetube Slip-In Mufflers


    Hooker Headers Sidetube Slip-In Mufflers are designed specifically for vehicles with 4'' diameter sidepipes. They are constructed using 16-gauge aluminized steel for durability and can be removed easily for racing.


    Available in three core styles to suit your sound control and performance needs:
    The reverse flow design for small and big block engines does not restrict engine efficiency and has the highest level of sound control for the quietest possible configuration.

    The glasspack design has greater flow capacity & is louder than the reverse flow mufflers. They produce that classic 1960's performance sound.

    For 1965-74 Corvette applications, the maximum flow design has a straight-through, high-flow perforated core that operates at 99% efficiency with average power gains of 23% over open headers. Testing on a 1968 Corvette with a 427 engine yielded an increase of 40 horsepower and 20 ft/lbs of torque, which is more than an undercar exhaust with turbo mufflers.

    Features
  • Fits 4" Sidetube Systems
  • Long Lasting
  • Easily Removed for Racing
  • Will Not Restrict Engine Efficiency
  • Sold in Pairs

  • Items similar to Hooker Headers 21002

    Hooker Headers 21002

    Diameter (in.)
    4
    Inlet Size (in.)
    4
    Outlet Size (in.)
    4
    Body Height (in.)
    N/A
    Overall Length (in.)
    NA
    Shape
    Round
    Body Width (in.)
    N/A
    Body Length (in.)
    N/A
    Material
    N/A
    Position
    N/A
    Inlet Type
    OEM
    Outlet Type
    OEM
    Inlet Position
    OEM
    Outlet Position
    OEM
    Exhaust Insert Finish
    Natural
    Exhaust Insert Material
    Steel
    Exhaust Insert Style
    Louvered core
    Quantity
    Sold as a pair
    Manufacturer's Part Number:
    21002HKR
    Rated 4 out of 5 by from Good Fit I installed the 21002 Hooker Headers mufflers into my side pipes. The results was as expected a quieter exhaust sound that still sound good. The only improvement would have been some instructions on how to remove the muffler insterts that where already in the side pipes when I purchased the Car.
    Date published: 2016-02-23
    • 2016-05-02T12:37CST
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