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Hooker Super Competition Sidetube Slip-in Mufflers 21046HKR Mufflers, Slip-In, 2 1/2 in. Inlet/Outlet, 4 in. Diameter, Steel, Black Aluminized, Pair

SKU: HOK21046HKR

Exhaust Inserts

Hooker Super Competition Sidetube Slip-in Mufflers 21046HKR Mufflers, Slip-In, 2 1/2 in. Inlet/Outlet, 4 in. Diameter, Steel, Black Aluminized, Pair

SKU: HOK21046HKR

Exhaust Inserts
A$1,034.11
BACKORDER This item will be special ordered in for you. Contact us prior to purchase if you require an ETA.

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Description

Muffler Insert - Maximum Flow - 4 in Side Tube - Slip-In - Steel - Black Paint - Pair


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 02:44:22

Data: v4.2 - Upd: 2026-11-08 05:54:39

Features

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Hooker Headers, Hooker, Hooker (holley), Hooker Blackheart
StreetFX SKU hok21046HKR
SFX Item ID 5013447
Accounting SKU hok-21046HKR
Manufacturer SKU 21046HKR
Manufacturer UPC 090127605417
Alternative References 21046HKR, HKR21046, HKR21046HKR, HOK-21046HKR

Mufflers, Sidetube Slip-In, 2 1/2 in. Inlet/Outlet, 4 in. Diameter, Steel, Black Aluminized, Pair

Hooker Super Competition sidetube slip-in mufflers have been developed for vehicles with 4 in. sidepipes, such as those equipped with Hooker Super Roadster and side mount headers. The mufflers are easily removed for racing purposes, and are available in a performance-style glasspack or in a quieter, all-metal, reverse flow-style. They produce an average of 23 percent more power than open headers, and feature a high-flow, perforated core that operates at 99 percent efficiency. High-temperature packing material absorbs noise while producing a powerful, mellow sound. The outer case is constructed of durable 16-gauge aluminized steel and protected by electrostatically applied high-temperature black paint. The inlet and outlet are 2.5 in. perforated cores in a 4 in. casing.

Product Attributes
BrandHooker Headers
Manufacturer's Part Number21046HKR
Part TypeExhaust Inserts
Product LineHooker Super Competition Sidetube Slip-in Mufflers
UPC090127605417
Diameter (in.)4.000 in.
Exhaust Insert StyleLouvered core
Exhaust Insert MaterialStainless steel
Length (in.)33.375 in.
QuantitySold as a pair.
NotesDeveloped for vehicles with 4 in. sidepipes such as 1965–1974 Corvettes or vehicles equipped with Hooker Super Competition Roadster and Side Mount Headers.

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