Kooks Universal 2 1/2in Round Muffler 14in Long. Pol SS

Polished 2.5 Inch Round Stainless Muffler Engineered for Clean Exhaust Fabrication

The R250-14 is a 2.5 inch round weld on muffler with a 14 inch body, finished in polished T304 stainless steel for builders who want both performance and presentation in their exhaust system. The 14 inch body length provides ample internal volume for deep, refined tone attenuation on 2.5 inch exhaust systems, and the polished exterior finish adds visual quality under the vehicle that complements a well built custom exhaust layout. For muscle car and sports car builders working with 2.5 inch pipe diameter, this muffler represents the premium choice in the Kooks universal muffler lineup at this size.

The polished T304 stainless construction of the R250-14 means the muffler resists corrosion and road contamination better than aluminized steel options, and the polished surface maintains its appearance for years without treatment. Weld on connections at both the 2.5 inch inlet and outlet create a permanent installation that does not loosen or leak over time. The round body profile integrates cleanly into fabricated exhaust systems and pairs well with polished or brushed stainless tailpipe tips for a finished appearance across the entire visible exhaust section. This is a purpose built performance muffler from a manufacturer with deep roots in serious exhaust engineering.

Key Features

• 2.5 inch inlet and outlet for 2.5 inch exhaust system applications
• 14 inch body length for generous internal volume and deep tone
• Polished T304 stainless steel for corrosion resistance and premium appearance
• Round body profile for straightforward fabrication integration
• Weld on installation for a clean, permanent exhaust connection
• Universal fitment for custom and replacement exhaust applications

What's Included

• 1 x 2.5 inch round polished stainless weld on muffler with 14 inch body

Specifications

Frequently Asked Questions

What pipe size does this muffler fit?
This muffler uses 2.5 inch inlet and outlet connections for weld in installation into 2.5 inch exhaust tubing.

What finish does this muffler have?
This muffler is finished in polished T304 stainless steel. The polished surface provides an attractive appearance and enhanced resistance to surface oxidation and road contamination.

How does the 14 inch body affect exhaust tone?
The 14 inch body provides greater internal volume than shorter muffler options, which results in deeper tone and more attenuation of higher frequency exhaust sound. This makes it well suited to V8 street builds where a refined, throaty exhaust note is desired without being excessively loud.

Does the polished finish require maintenance?
Polished T304 stainless is relatively self maintaining under normal operating conditions. Occasional cleaning with a stainless steel cleaner or polish will keep the surface looking its best over time.

How is this muffler installed?
This muffler is a weld on muffler. Both the inlet and outlet are welded to adjacent 2.5 inch exhaust tubing to create the permanent installation. Professional TIG welding is recommended to preserve the polished appearance near the weld joints.

Can this muffler be used on turbocharged builds?
Yes. T304 stainless handles the higher exhaust temperatures common in turbocharged applications, and the 2.5 inch pipe size is appropriate for many forced induction setups.

Is this muffler sold as a single unit?
Yes. Order two for a dual exhaust system.

How does this muffler compare to the R300-14?
This muffler and R300-14 share the same 14 inch body length but differ in pipe diameter. This muffler is for 2.5 inch systems and the R300-14 is for 3 inch systems. This muffler also features a polished finish.

Can I use this muffler with an exhaust tip for a finished appearance?
Yes. The 2.5 inch outlet of this muffler can be connected to a matching exhaust tip or extension pipe of the appropriate diameter for a finished tailpipe presentation.

Installation Instructions

1. Allow the exhaust system to cool before beginning fabrication.
2. Determine the muffler position, ensuring the 14 inch round body clears all undercarriage components and the floor pan.
3. Cut the 2.5 inch exhaust tubing at the inlet and outlet positions.
4. Position the muffler with the inlet toward the engine.
5. Tack weld to set alignment before completing full circumference welds at both connections.
6. Use T304 compatible TIG filler to maintain weld quality near the polished surface.
7. Allow welds to cool and inspect for leaks before returning the vehicle to service.

Prop 65 Warning

WARNING: This product can expose you to chemicals including Chromium and Nickel, which are known to the State of California to cause cancer, birth defects or reproductive harm. For more information go to www.P65Warnings.ca.gov.