Borla XR-1 Multi-Core Racing Muffler 3in In/Out 5.5in x 8.5in Oval 34in Case (400115)

The Borla XR-1 Multi-Core Racing Muffler (400115) is a high-volume, universal exhaust solution engineered for high-horsepower applications where flow is critical. While originally designed for Pre-Runner trucks, the long 34-inch case design makes it an ideal choice for SUVs, full-sized trucks, and high-heat applications like rotary-equipped vehicles. This muffler features Borla's patented 4-tube Multi-Core internal design, which is laboratory-proven to flow better than a straight piece of tubing, maximizing horsepower and torque gains.

• Internal Technology: Patented Multi-Core 4-tube design optimizes exhaust gas velocity and flow.
• Durability: Constructed from premium T-304 stainless steel with reinforcing ribs on the body and 100% welded seams for off-road structural integrity.
• Sound Control: Packed with high-temperature T-304 stainless steel wool to maintain a race-ready tone without degrading over time.
• Installation: Reversible design for mounting flexibility; natural mill finish can be brushed or polished.
• Specifications: 3-inch center inlet and outlet, 5.5-inch x 8.5-inch oval body, 34-inch body length, and 39.25-inch overall length.

This part (MPN 400115) does not feature a Borla logo embossment, providing a clean, stealth appearance for custom fabrications.