Borla XR-1 Multi-Core 3-Inch Center Inlet and Outlet Racing Muffler, Part 400373

XR-1(r) Multi-Core Racing Muffler. 3" Center Inlet/ 3" Center Outlet 6.25" Round x 16" Long Body 21" Overall Length. Long body design works well on SUV & truck applications but can be used on a wide range of vehicles. It features BORLA(r)'S patented Multi-Core 4 tube design for maximum flow, horsepower, and torque. The Multi-Core portion of XR-1(r) mufflers flows better than straight tubing. Recommend for high horsepower applications. Reversible design for installation flexibility. T-304 Stainless steel for superior corrosion resistance. Natural mill finish can be brushed or polished prior to installation. 100% welded construction for strength. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. There is no BORLA(r) logo embossment on this part. Best of all, it's made in the USA. Just what you’d expect from the world’s most experienced (and most winning) exhaust brand. XR-1 Multi-Core Racing Muffler Rotary Engine Equipped Vehicles - 3" Center Inlet/ 3" Center Outlet 6.25" Round x 16" Long Body 21" Overall Length. Universal Part. Reversible Design. Patented Multi-Core Technology

• 3" Center Inlet/ 3" Center Outlet 6.25" Round x 16" Long Body 21" Overall Length
• Universal muffler. Reversible design. No BORLA(r) logo embossement.
• Long body design works well on SUV & truck applications
• Can be used on a wide range of vehicles
• Multi-Core 4 tube internal design

The Borla XR-1 Multi-Core Racing Muffler is a universal performance muffler designed for high-horsepower applications, including rotary engine-equipped vehicles, SUVs, trucks, and a wide range of custom exhaust builds. Its 3-inch center inlet and 3-inch center outlet provide compatibility with common high-flow exhaust systems, while the reversible design allows flexible installation positioning.

At the core of this Borla muffler is the patented Multi-Core four-tube internal design, engineered to promote excellent exhaust flow while supporting increased horsepower and torque potential. Borla states that the Multi-Core section can flow better than straight tubing, making the XR-1 a strong choice for demanding racing and performance applications. The long-body configuration is especially well suited to SUV and truck installations where additional sound control and flow capacity are beneficial.

Constructed from durable T-304 stainless steel, the Borla XR-1 offers superior corrosion resistance and long-term performance. Its natural mill finish can be brushed or polished before installation for a customized appearance. Fully welded construction enhances structural strength, while high-temperature continuous-filament fiber acoustic material helps control exhaust sound. This universal muffler has no Borla logo embossment and is proudly made in the USA.

Fitment: Universal application. Designed for custom installation on compatible vehicles with a 3-inch exhaust system. Suitable for rotary engine-equipped vehicles, SUVs, trucks, and other performance applications when properly configured by the installer.

Note: Professional exhaust-system installation is recommended. Verify inlet and outlet routing, available clearance, and local emissions requirements before installation.

Features:

• Patented Multi-Core Technology: Four-tube internal construction promotes high exhaust flow and supports strong horsepower and torque performance.
• High-Flow Performance Design: Engineered for high-horsepower racing applications and capable of flowing better than straight tubing through the Multi-Core section.
• Reversible Universal Configuration: Center inlet and center outlet layout can be installed in either direction for added installation flexibility.
• Durable Stainless Steel Construction: T-304 stainless steel resists corrosion, while 100% welded construction provides strength and reliable service.

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