Kooks R300-10 3" Universal Oval Muffler w/ Polished Stainless for Custom Exhaust

Vehicle Fitment

• Universal fit - designed for custom 3" exhaust systems
• Requires welding, fabrication, or adaptation to specific vehicles

Features

• Performance 3" inlet and outlet high-flow muffler
• Polished 304 stainless steel oval body for corrosion resistance
• Compact 10" body length for tight clearance applications
• Oval cross-section profile for improved gas flow and sound control
• Center inlet / center outlet for versatile exhaust routing
• Enhances exhaust tone with a deeper, freer-flowing sound
• Universal design suited for street or race performance builds
• Ideal for custom headers, mid-pipes, and rear exhaust sections

Specifications

• Material: 304 stainless steel
• Inlet diameter: 3.00"
• Outlet diameter: 3.00"
• Muffler body length: 10"
• Overall length including inlet/outlet: ~14-15"
• Body cross-section approximate: 4.5" height x 7.5" width
• Installation: Weld-on or custom exhaust fitment required
• Finish: Polished stainless steel

Included Components

• 1x Kooks R300-10 3" oval performance muffler

Product Description

The Kooks R300-10 Universal Oval Muffler is a performance exhaust component engineered for custom 3" diameter exhaust systems. Its polished 304 stainless steel body and compact 10" length make it especially suited for exhaust builds where clearance is limited or where a short, high-flow muffler is desired. The oval design with center inlet and outlet helps promote exhaust gas flow while providing a richer, more aggressive exhaust tone compared to many restrictive stock mufflers.

Because this part is universal, it is intended to be welded or custom-fitted into an existing 3" exhaust system on virtually any vehicle where a high-flow muffler is required. It is commonly used in performance builds on muscle cars, sports cars, and custom race applications where tailored exhaust routing or fabrication is needed. The durable stainless steel construction resists corrosion and heat over long-term use, making it a solid choice for enthusiasts and fabricators looking to improve sound and flow in a custom exhaust setup.