Borla 400491 Universal Pro-XS Muffler Oval 3" Inlet/Outlet Offset/Offset Notched

Vehicle Fitment

• Universal application--fits most 3" exhaust systems across car, truck, SUV, and performance platforms

Fitment Notes

• 3" offset inlet and offset outlet design; reversible for left or right side routing
• Notched necks allow quick clamp-on installation--no welding needed
• May require custom piping or adapters depending on your vehicle's exhaust geometry

Features

• Constructed of T-304 stainless steel for rust resistance and durability
• Straight-through, perforated core reduces backpressure and improves flow
• Oval 4"x9.5" body length 14" provides compact design--19" overall
• High-temperature acoustic filler controls sound without harsh resonance
• Reversible fitment adds versatility in tight or custom installs
• Assembled entirely in the USA and backed by Borla's Million-Mile warranty

Specifications

• Part Number: 400491
• Inlet/Outlet Diameter: 3" each
• Body Dimensions: 14" long x 4" high x 9.5" wide; 19" overall length
• Material: T-304 stainless steel; natural finish
• Necks: Notched for clamp installation
• Configuration: Offset inlet/outlet, reversible
• Warranty: Million-mile from Borla

Included Components

• 1x Borla ProXS 400491 muffler
• No brackets or clamps included (use Borla clamp part #18330)

Product Description

The Borla ProXS part #400491 is a universal, performance-focused muffler designed for 3" exhaust systems. Built with T-304 stainless steel and a straight-through core, it improves exhaust flow while delivering a deep, commanding tone. The reversible, offset inlet/outlet makes it suitable for custom or OEM-like installations.

Featuring notched necks, it enables easy clamp-on installation--