Borla ProXS Muffler 400286 2.5-Inch Dual Inlet/Dual Outlet

ProXS Muffler 2.5" Dual Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Un-Notched necks are designed for weld in installation. If clamping, use 3" wide band clamps 18004 (clamps not included). This muffler features an internal X-Pipe for increased performance and improved sound. Reversible design for installation flexibility. T-304 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. 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 2.5" Dual Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Internal X-Pipe. Universal Part. Reversible Design. Million Mile Warranty

• Un-Notched necks are designed for weld in installation. If clamping, use 3" wide band clamps 18004.
• Universal muffler. Reversible design. Dual inlet, dual outlet. Contains an internal X-Pipe.
• 2.5" Dual Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length
• Alternate muffler with Notched necks is 400493. Use 1" wide band clamps 18325.

The Borla ProXS Muffler, Part Number 400286, is a universal performance muffler designed for custom exhaust systems and weld-in installation. It features 2.5-inch dual inlets and 2.5-inch dual outlets in a compact oval body, making it suitable for applications requiring balanced exhaust flow and flexible installation. The reversible design allows the muffler to be positioned according to the layout of the vehicle’s exhaust system.

An internal X-pipe helps improve exhaust performance and contributes to a refined exhaust note, while the free-flow design supports efficient gas movement. High-temperature continuous-filament fiber acoustic material provides sound control without restricting the muffler’s performance characteristics. The un-notched necks are intended for welding; if a clamped installation is preferred, Borla 3-inch-wide band clamps, Part Number 18004, are recommended and sold separately. For an alternative notched-neck configuration, see Borla Part Number 400493, which uses 1-inch-wide band clamps, Part Number 18325.

Constructed from T-304 stainless steel, this Borla ProXS muffler offers excellent corrosion resistance and long-term durability. Its fully welded construction provides added strength for demanding automotive use. The natural mill finish can be brushed or polished before installation to complement a custom exhaust system. Made in the USA, the Borla ProXS Muffler is backed by Borla’s Million-Mile Warranty. This is a universal automotive muffler and may require custom fabrication for proper vehicle fitment.

Features:

• Internal X-Pipe: Helps improve exhaust performance and delivers a refined exhaust sound.
• Free-Flow Design: Supports efficient exhaust gas flow for improved performance potential.
• Reversible Configuration: Allows installation flexibility in custom exhaust systems.
• T-304 Stainless Steel Construction: Provides excellent corrosion resistance and long-term durability.
• Fully Welded Construction: Adds strength and reliability for demanding applications.
• Continuous-Filament Fiber Acoustic Material: Provides effective sound control at high operating temperatures.
• Weld-In Installation: Un-notched necks are designed for welding; clamped installation requires 3-inch-wide band clamps, Part Number 18004.
• Made in the USA: Manufactured by Borla and supported by the company’s Million-Mile Warranty.

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