Sale

Exhaust Mufflers and Resonators

Hooker

SC UNV MAXFLOW 3.0

$172.95 $155.95 Save $17.00

SKU: H00I 21605HKR

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

It features a bi-directional flow and is constructed from aluminized steel. The muffler has a 3-inch inlet and outlet diameter and an oval case shape.
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Part #: 21605HKR

The Hooker Maximum Flow muffler actually flows 99% and produces more horsepower and torque than a 2-1/2 in. 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.

Features:

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

Maximum Flow Muffler | Universal | Bi-Directional | Turbo Style | 4.75 in. H x 10.25 in. W x 14 in. L | 3 in. ID | 3 in. OD | Offset Inlet | Single Center Outlet | Uncoated

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandHooker
Part NumberH00I 21605HKR

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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