Borla XR-1 4in Ctr-Ctr Round Rotary Race Muffler | Universal (400374)
Borla XR-1 4in Ctr-Ctr Round Rotary Race Muffler | Universal (400374)
SKU:400374
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The Borla XR-1 4-inch Center-to-Center Round Rotary Race Muffler is a high-performance exhaust component specifically designed for rotary engine-equipped vehicles. Engineered for racing applications, this muffler features advanced multicore technology combined with a patented uninterrupted-flow design to maximize exhaust flow, minimize backpressure, and improve engine responsiveness. Constructed from durable stainless steel, it offers excellent longevity and resistance to high temperatures and corrosion. The XR-1 muffler is optimized for racing environments, delivering enhanced sound and performance characteristics that appeal to motorsport enthusiasts seeking reliable, high-quality exhaust upgrades.
This universal fitment muffler is suitable for a wide range of rotary engine vehicles, providing a direct bolt-on upgrade for racing and high-performance builds. Its 4-inch diameter and round shape are ideal for applications requiring efficient exhaust flow and aggressive sound. The kit includes the necessary mounting hardware for straightforward installation. Designed for track use or high-performance street driving, this muffler enhances exhaust efficiency and engine response, making it an excellent choice for racers and enthusiasts aiming to maximize their vehicle’s performance.
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Overview
Overview
Borla XR-1 Multi-Core Racing Muffler
Universal Fitment
Part #: 400374
Overview
The Borla XR-1 Multi-Core Racing Muffler is a high-performance exhaust component designed for rotary engine-equipped vehicles. Engineered for racing applications, this muffler combines advanced multicore technology with a patented uninerrupted-flow design to optimize exhaust flow, reduce backpressure, and enhance overall engine response. Its durable stainless steel construction ensures longevity and resistance to high temperatures, making it ideal for competitive racing environments. Whether you're upgrading your race car or seeking a robust exhaust solution, the XR-1 muffler delivers a combination of performance, durability, and a refined sound profile that appeals to serious enthusiasts and professional racers alike.Key Features
This racing muffler features a precision-crafted design focused on maximizing exhaust efficiency and durability. Key features include:- Constructed from high-quality stainless steel for corrosion resistance and longevity
- Multi-core internal design to improve exhaust flow and reduce turbulence
- 4-inch inlet and outlet diameters for optimal performance and compatibility with racing setups
- 16-inch length with a 6.25-inch round body for a compact yet effective profile
- Reversible design for versatile installation options
- Uninterrupted flow path to support high RPM operation and aggressive driving
- Universal fitment suitable for a wide range of rotary engine vehicles
Construction & Design
The XR-1 muffler is built with a stainless steel body featuring a round, compact design that balances performance and durability. Its multicore internal structure is engineered to optimize exhaust flow, minimize backpressure, and support high-performance engine operation. The reversible design adds installation flexibility, allowing it to be configured for various exhaust layouts.Driving Feel & Feedback
Designed to enhance the exhaust flow and sound characteristics of rotary engine vehicles, this muffler helps produce a more aggressive and refined exhaust note. It supports improved throttle response and engine efficiency, providing a more engaging driving experience suited for racing and high-performance applications.Installation & Fitment
This universal muffler is intended for straightforward installation on compatible rotary engine vehicles. Proper fitment should be verified against your vehicle’s exhaust system specifications and the part number provided.What’s Included
The package includes the XR-1 Multi-Core Racing Muffler with all necessary mounting hardware for a secure installation. Additional components or adapters are not included and should be sourced separately if required for your specific setup.
