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Hooker 21046HKR Maximum Flow Sidetube Slip-In Muffler, 4 Inch
Hooker 21046HKR Maximum Flow Sidetube Slip-In Muffler, 4 Inch

Hooker 21046HKR Maximum Flow Sidetube Slip-In Muffler, 4 Inch

Universal Fit, Side-Tube Slip-In Muffler Type, 4.00" Inlet Diameter, 4.00" Outlet Diameter

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Hooker 21046HKR Maximum Flow Sidetube Slip-In Muffler, 4 Inch
Hooker 21046HKR Maximum Flow Sidetube Slip-In Muffler, 4 Inch
Hooker 21046HKR Maximum Flow Sidetube Slip-In Muffler, 4 Inch
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Hooker 21046HKR Maximum Flow Sidetube Slip-In Muffler, 4 Inch
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Part # 42521046HKR
$211.95
$215.95
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Details

Muffler Type:
Side-Tube Slip-In
Inlet Diameter:
4.00"
Outlet Diameter:
4.00"
MFG. Part #:
21046HKR
GTIN Code:
090127605417
Sold in Quantity:
Each

Info

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.

  • 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
  • Sold as Pair

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Installation Instructions (PDF)

Important Messages:

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Some parts are not legal for use in California or other states with similar laws/regulations

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Videos & Articles
  • Pat shows that exhaust can make a difference on even your daily driver. Check out this video of Pat with the Hooker Muffler installed on his '03 Suburban.
  • If you're ready to get your street machine sounding as good as it looks, it's important to know how each muffler will affect your sound and performance. Take a listen and decide which muffler is best for your rod.
  • Maintaining your headers is an important part of any hot rod. Pat gives some tips and demonstrates how well Purple Metal Polish works for keeping your headers looking great.
  • A new motor deserves new exhaust. Click here for a rundown on selecting the best setup!

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