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The Kooks muffler identified by manufacturer part number KO250-12 is supplied in the exact configuration described as 2-1/2" Oval Center/Center Muffler 12" Long Body . Polished Stainless Steel.. Confirm the complete part number, application, connection points, emissions requirements, and included components before ordering.
Key Features
- T304 stainless construction handles the higher exhaust temperatures and pressures of forced induction applications, and the 2.5 inch pipe size is appropriate for many turbocharged engine setups.
- Plan the muffler location, accounting for the 12 inch body length and clearance to undercarriage components at the oval body height.
- With a 2.5 inch inlet and outlet, this muffler is a direct fit for exhaust systems built around the 2.5 inch pipe diameter common on many V8 muscle cars, pony cars, and sports cars.
- T304 stainless steel construction ensures the muffler resists the corrosion and thermal cycling that deteriorate lesser materials over years of use.
- This muffler has 2.5 inch inlet and outlet connections for integration into 2.5 inch exhaust systems via weld on installation.
- The oval body has a reduced height compared to a round muffler of similar internal volume.
Fitment
This is a universal exhaust or service component. Confirm diameter, length, connection style, material, available space, and fabrication requirements before ordering.
Specifications
| Brand | Kooks Headers |
|---|---|
| Manufacturer Part Number | KO250-12 |
| Product Type | Muffler |
| Material | Stainless steel |
| Nominal Dimensions | 2-1/2 in, 12 in |
| Fitment Type | Universal |
| Manufacturer Detail | 4-1/2" x 7-1/2" Oval Body |
| Manufacturer Detail | 2-1/2" I.D. Inlet and Outlet |
| Manufacturer Detail | Sold Individually |
What's Included
- 2-1/2" I.D. Inlet and Outlet
- Sold Individually
About Kooks Headers
Kooks manufactures performance exhaust components in the United States, including headers, connection pipes, catalytic-converter assemblies, cat-back systems, mufflers, flanges, and installation hardware. Exact part-number verification is essential because similar-looking components can use different engine, chassis, emissions, and connection configurations.
Related Kooks Headers Products
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- Kooks R300-14 3 in. Round Weld On Muffler 14 in. Body T304 Stainless Steel
Frequently Asked Questions
What should I measure before using this 2-1/2 in, 12 in Kooks component?
Confirm tubing diameter, connection style, overall length, orientation, available clearance, and every fabrication part required for the complete exhaust system.
Will this connect to the factory exhaust?
Factory connection compatibility depends on the exact part number. Verify collector and outlet size, required Kooks connection pipes, catalytic-converter configuration, and every note in the current Kooks listing.
What should be checked after installation?
Confirm exhaust clearance, hanger alignment, fastener torque, oxygen-sensor wiring, leak-free joints, and adequate distance from fuel lines, brake lines, wiring, and bodywork.
Installation Instructions
- Verify the exact part number, application, emissions configuration, connection sizes, and package contents before disassembly.
- Support the vehicle safely and follow the factory service procedure together with the current Kooks instructions for this part number.
- Test-fit every component before cutting, welding, or permanently tightening the exhaust system.
- Route oxygen-sensor wiring and nearby hoses, lines, and cables away from heat, sharp edges, and moving parts.
- Torque fasteners in the specified sequence, inspect for leaks and clearance, and recheck accessible connections after initial heat cycles.
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