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Hooker Sidetube Slip-In Mufflers

Maximum Flow 4" Sidetube Slip-In Muffler; These high performance mufflers produce an average of 23% more power than open headers. Sold in pairs.

PART# 21046HKR

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$223.95   Suggested Retail
$180.86   Holleydays Price
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Overview

This high performance muffler has been developed for vehicles with 4" sidepipes such as 1965-74 Corvettes or vehicles equipped with Hooker Super Competition Roadster and Side Mount Headers. These mufflers produce an average of 23% more power than open headers and feature a high-flow, perforated core that operates at 99% efficiency. High temperature packing material absorbs noise while producing a powerful mellow sound. These mufflers, as tested on a 1968 Corvette with a 427 cu inch engine increased horsepower by 40 at a peak of 5500 RPM and 20 ft.-lbs. at peak of 4500RPM versus a leading aftermarket undercar header/turbo-style muffler combination. The outer case is constructed of durable 16 gauge aluminized steel protected by electrostatically applied high-temperature black paint. The inlet/outlet is a 2.5 perforated core in a 4" casing. Sold in pairs.

Features:

  • Fits 4" Side Tube systems
  • Maximum Flow Muffler Design
  • Easily Removed For Racing
  • Durable 16 Gauge Outer aluminized Steel Case
  • Electrostatically applied High-Temp Black Paint Finish
  • 2-1/2" to 4" contoured inlet/outlets
  • 2-1/2" high flow perforated core in a 4” casing
  • 2.5" Perforated Core Surrounded by High temperature Sound Absorbing Packing Material

Specs

BrandHooker
Emission Code5
Inlet4 inch center
Inlet Diameter (in)4
Inlet PositionCenter
Outlet4 inch center
Outlet Diameter (in)4
Product TypeMuffler
Type of MufflerSide-Tube Slip-In
Part Number21046HKR

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.

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      Some parts are not legal for use in California or other states with similar regulations.

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