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$91.71
$74.29
Hooker 21609HKR Maximum Flow Muffler, Single 4 Inch Centered Inlet
Hooker 21609HKR Maximum Flow Muffler, Single 4 Inch Centered Inlet

Hooker 21609HKR Maximum Flow Muffler, Single 4 Inch Centered Inlet

Universal Fit, Glass Pack Muffler Type, 4" Inlet Diameter, 4" Outlet Diameter, 4.00 Inlet Size

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Hooker 21609HKR Maximum Flow Muffler, Single 4 Inch Centered Inlet
Hooker 21609HKR Maximum Flow Muffler, Single 4 Inch Centered Inlet
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Part # 42521609HKR
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$74.29
$91.71
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Important Messages:

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

Details

Muffler Type:
Glass Pack
Inlet Diameter:
4"
Outlet Diameter:
4"
Overall Height:
4.75"
Inlet Size:
4.00
Outlet Size:
4.00
Body Length:
14"
MFG. Part #:
21609HKR
Sold in Quantity:
Each
GTIN Code:
090127574300

Info

HolleyDAYS are here again! SAVE up to 20% on this part and hundreds of other Holley brands during the 2018 HolleyDAYS sale 11/15/18-12/31/18.

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.

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

Installation Instructions (PDF)

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

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