Borla ProXS Universal Muffler BOR400487 – 3-Inch Center Inlet, Dual 2.5-Inch Outlets

ProXS Muffler 3" Center Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Notched necks for easy clamp-on installation using 1" wide band style clamps using 1) 18330 and 2) 18325 (clamps not included). Reversible design for installation flexibility. This muffler is generally used in a system that has a single inlet and dual outlets, but it can also be installed in a system with dual inlets and a single outlet. High quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. Alternate muffler with Un-Notched necks is 40349. If clamping, use band clamps 18004 & 18006.Best of all, it's made in the USA and backed by BORLA(r)'s Million-Mile warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand. ProXS Muffler 3" Center Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Universal Part. Reversible Design. Notched Necks. Million Mile Warranty

• Alternate muffler with Un-Notched necks is 40349. If clamping, use band clamps 18004 & 18006.
• 3" Center Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length
• Notched necks are designed for clamp in installation. Use band clamps 18325 & 18330.
• Universal muffler. Reversible design.

The Borla ProXS Universal Muffler, part number BOR400487, is designed for custom exhaust systems requiring a single center inlet and dual outlets. It features a reversible configuration, allowing flexible installation in a variety of exhaust layouts. The notched necks are suited for clamp-on installation with compatible 1-inch-wide band clamps, making this muffler a practical choice for performance exhaust projects. It may also be used in systems with dual inlets and a single outlet when the exhaust configuration permits.

Constructed from high-quality T-304 austenitic stainless steel, the Borla ProXS muffler provides strong corrosion resistance and long-term durability. Its fully welded construction adds structural strength, while the free-flow design helps support improved exhaust flow and performance. High-temperature continuous-filament fiber acoustic material helps control sound without compromising the muffler's performance-oriented design. The natural mill finish can be brushed or polished before installation for a customized appearance.

This universal oval muffler has a 3-inch center inlet, dual 2.5-inch outlets, and a 19-inch body with a 24-inch overall length. The notched-neck design is intended for use with Borla band clamps 18325 and 18330; clamps are not included. For an alternate version with un-notched necks, consider Borla part number 40349. The Borla ProXS Muffler is made in the USA and backed by Borla's Million-Mile Warranty. Universal fitment requires custom exhaust fabrication and vehicle-specific installation verification.

What's Included

• One Borla ProXS universal muffler
• Installation hardware is not included

Features:

• Flow Performance: Free-flow muffler design supports efficient exhaust flow and performance-oriented custom exhaust systems.
• Durable Construction: T-304 austenitic stainless steel and fully welded construction provide excellent corrosion resistance and structural strength.
• Flexible Installation: Reversible design accommodates different exhaust layouts and installation orientations.
• Sound Control: High-temperature continuous-filament fiber acoustic material helps manage exhaust sound while maintaining a free-flow configuration.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1