Hooker Maximum Flow Muffler

The Maximum Flow flows either direction, allowing for easy installation. Single 3" Center Inlet, Single 3" Center Outlet

PART# 21606HKR

Suggested Retail: $87.91
Your Price: $79.12
Free Shipping on orders over $100*


The Hooker Maximum Flow muffler actually flows 99% and produces more horsepower and torque than a 2-1/2" open pipe. The Maximum Flow is constructed of an aluminized steel case with stainless steel internal core and uses a high temperature packing material to absorb excessive noise while allowing a mellow powerful sound. As with all absorption type silencers, the Maximum Flow will be most effective for sound control with lower compression (8.5 to 1 and lower) motors with conservative camshafts and with applications using catalytic converter(s). The Maximum Flow flows either direction, allowing for easy installation.


  • Stainless Steel Perforated Internal Exhaust Core
  • 4-3/4"H x 10-1/4"W x 14"L 16 Gauge Fully Welded Aluminzed Steel Case
  • Single 3" Center Outlet
  • Single 3" Center Inlet
  • Feature Intricate Stainless Steel, Robotic Weld Seams
  • Bi-Directional Exhaust Flow Design
  • High Temp Packing Material Absorbs Excessive Noise while Allowing a Mellow Powerful Sound


Inlet3 inch center
Outlet3 inch center
Product TypeMuffler
Type of MufflerGlass Pack

Tech Resources

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