Borla XR-1 Multi-Core Racing Muffler

Universal Fitment

Part #: 40722

Overview

The Borla 40722 XR-1 Multi-Core Racing Muffler is a high-performance exhaust component designed for racing applications and enthusiasts seeking optimal sound and flow characteristics. Crafted from durable stainless steel, this muffler features a multicore design that enhances exhaust flow efficiency while maintaining a robust and aggressive sound profile. Its universal fitment makes it suitable for a variety of racing vehicles, providing a versatile upgrade for those looking to improve exhaust response and durability. Whether for drag racing or oval track events, this muffler helps support your vehicle’s performance by reducing backpressure and promoting smoother exhaust flow, contributing to improved engine response and a more commanding sound.

Key Features

This XR-1 muffler combines innovative design with practical benefits to meet the demands of racing environments. Its key features include:

• Constructed from high-quality stainless steel for corrosion resistance and longevity
• Multicore technology for optimized exhaust flow and sound control
• Reversible design for flexible installation options
• 16" length with a 6-1/4" round body for a compact yet effective form factor
• 3.5" center inlet and outlet for compatibility with various exhaust setups
• Uninterrupted flow path to maximize exhaust velocity and response
• Designed to produce an aggressive, race-inspired exhaust note

Construction & Design

The XR-1 muffler features a precision-machined multicore core arrangement, engineered to improve exhaust flow and durability under demanding racing conditions. Its stainless steel construction ensures resistance to corrosion and high temperatures, making it suitable for intense track use. The reversible design allows for flexible installation, accommodating different vehicle configurations and exhaust layouts.

Driving Feel & Feedback

This muffler enhances the auditory experience with a deep, aggressive sound that complements high-performance driving. Its design promotes a more responsive exhaust note, giving drivers a visceral connection to their vehicle’s power output. The multicore technology helps reduce unwanted drone and noise, providing a balanced sound profile suitable for racing environments.

Installation & Fitment

Designed as a universal part, the XR-1 muffler requires proper fitment verification against your vehicle’s exhaust system. Installation may involve cutting and custom fitting to ensure optimal performance and clearance. Professional installation is recommended to achieve the best results and secure fitment.

What’s Included

The package includes the XR-1 multicore racing muffler with all necessary mounting hardware for installation. Additional components or adapters are not included and should be sourced based on your specific vehicle setup.

Ideal For

This muffler is ideal for racing enthusiasts, track day drivers, and anyone seeking a durable, high-performance exhaust component that delivers an aggressive sound and improved exhaust flow for competitive or spirited driving.