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Hooker Super Competition Sidetube Slip-in Mufflers 21003HKR Mufflers, Slip-In, Big Block, Reverse Flow, 4 in. Inlet/4 in. Outlet, Steel, Galvanized, Pair

SKU: HOK21003HKR

Exhaust Inserts

Hooker Super Competition Sidetube Slip-in Mufflers 21003HKR Mufflers, Slip-In, Big Block, Reverse Flow, 4 in. Inlet/4 in. Outlet, Steel, Galvanized, Pair

SKU: HOK21003HKR

Exhaust Inserts
A$1,313.05
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

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.

Part Type

Exhaust Inserts

Data: v4.2 - Upd: 2026-10-14 09:30:18

Specifications

Product Attributes - Brand
Hooker Headers
Product Attributes - Manufacturer's Part Number
21003HKR
Product Attributes - Part Type
Exhaust Inserts
Product Attributes - Product Line
Hooker Super Competition Sidetube Slip-in Mufflers
Product Attributes - UPC
700414029849
Product Attributes - Diameter (in.)
4.000 in.
Product Attributes - Exhaust Insert Style
Louvered core
Product Attributes - Exhaust Insert Material
Steel
Product Attributes - Exhaust Insert Color
Natural
Product Attributes - Length (in.)
33.375 in.
Product Attributes - Quantity
Sold as a pair.
Product Attributes - Notes
Big Block reverse flow design. Fits into 4.000 in. diameter sidetubes only.

Reference Information

Brand Name/s Hooker Headers
StreetFX SKU hok21003HKR
SFX Item ID 5013361
Supplier Item Code 5013361
Manufacturer SKU 21003HKR
Manufacturer UPC 700414029849
Alternative References HKR21003HKR, Inlet/4

Compatibility

Application Data
  • UniversalYes

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