Hooker Super Competition Sidetube Slip-in Mufflers 21046HKR Mufflers, Slip-In, 2 1/2 in. Inlet/Outlet, 4 in. Diameter, Steel, Black Aluminized, Pair
Hooker Super Competition Sidetube Slip-in Mufflers 21046HKR Mufflers, Slip-In, 2 1/2 in. Inlet/Outlet, 4 in. Diameter, Steel, Black Aluminized, Pair
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
Features
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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 | |
|---|---|
| Brand | Hooker Headers |
| Manufacturer's Part Number | 21046HKR |
| Part Type | Exhaust Inserts |
| Product Line | Hooker Super Competition Sidetube Slip-in Mufflers |
| UPC | 090127605417 |
| Diameter (in.) | 4.000 in. |
| Exhaust Insert Style | Louvered core |
| Exhaust Insert Material | Stainless steel |
| Length (in.) | 33.375 in. |
| Quantity | Sold as a pair. |
| Notes | Developed for vehicles with 4 in. sidepipes such as 1965–1974 Corvettes or vehicles equipped with Hooker Super Competition Roadster and Side Mount Headers. |
Compatibility
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