Borla XR-1 Multi-Core Racing Muffler with 3-inch Inlet/Outlet – Universal Fit for Pre-Runner Trucks and SUVs

XR-1® Multi-Core Racing Muffler. 3" Center Inlet/ 3" Center Outlet 5.5" x 8.5" Oval x 34" Long Body 39.25" Overall Length. Designed for Pre-Runner trucks. Long body design works well on SUVs & trucks but can be used on a wide range of other vehicles including rotary engine equipped vehicles. Body has reinforcing ribs. It features BORLA®'S patented Multi-Core 4 tube design for maximum flow, horsepower, and torque. The Multi-Core portion of XR-1® mufflers flows better than straight tubing. Recommend for high horsepower applications. Reversible design for installation flexibility. T-304 Stainless steel will never rust. Natural mill finish can be brushed or polished prior to installation. 100% welded construction for strength. High temperature T-304 stainless steel wool packing for sound control. There is no BORLA® 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 Pre-Runner Vehicles - 3" Center Inlet/ 3' Center Outlet 5.5" x 8.5" Oval x 34" Long Body 39.25" Overall Length. Universal Part. Reversible Design. Million Mile Warranty

• Designed for Pre-Runner vehicles, but can be used on other applications including rotary engines
• Multi-Core 4 tube internal design. High temperature T-304 stainless steel wool for sound control
• 3" Center Inlet/ 3" Center Outlet 5.5" x 8.5" Oval x 34" Long Body 39.25" Overall Length
• Universal Muffler. Reversible Design. No BORLA® logo embossement.
• Long body design works well on SUV & truck applications

The Borla XR-1® Multi-Core Racing Muffler (Part Number 400115) is engineered for high-performance applications, especially suited for Pre-Runner trucks but versatile enough for a wide range of vehicles including SUVs and rotary engine setups. Featuring a durable 3-inch center inlet and outlet, this muffler boasts a long body design measuring 34 inches with an overall length of 39.25 inches, optimized for maximum flow and sound control.
Constructed from high-grade T-304 stainless steel, the XR-1® muffler is resistant to rust and corrosion, ensuring longevity and consistent performance. Its 100% welded construction delivers strength and durability, making it suitable for demanding high horsepower environments. The muffler includes high-temperature stainless steel wool packing for effective sound attenuation, providing a deep, aggressive exhaust tone while maintaining compliance with noise regulations.
The internal design features BORLA®'s patented Multi-Core 4-tube configuration, which enhances airflow, horsepower, and torque over traditional straight-tube mufflers. Its reversible design offers installation flexibility, allowing it to be oriented for optimal fit without concern for directional flow. Reinforcing ribs on the body add structural integrity, especially important during off-road or rugged driving conditions. Made in the USA, this universal muffler is a reliable choice for enthusiasts seeking improved exhaust flow and a competitive edge, backed by Borla's Million Mile Warranty.
Perfect for high-performance vehicles, the XR-1® is an excellent upgrade for those looking to maximize engine output while maintaining a refined sound profile. Its oval body shape and robust construction make it a suitable choice for trucks, SUVs, and rotary engines, providing both performance and durability in one package.

Features:

• Designed for Pre-Runner vehicles but compatible with a wide range of other applications including rotary engines

• Multi-Core 4-tube internal design for superior airflow and performance

• Constructed from high-temperature T-304 stainless steel wool for sound control and corrosion resistance

• Reversible design allows for flexible installation orientation

• Long oval body measuring 5.5 inches by 8.5 inches with a length of 34 inches and overall length of 39.25 inches

• Universal fit suitable for trucks, SUVs, and high-performance vehicles

• 100% welded stainless steel construction ensures strength and durability

• Made in the USA with a Million Mile Warranty for peace of mind

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