Description
The Borla ProXS Muffler Part Number 400287 is engineered for maximum performance and durability with its 2.25-inch dual inlet and 2.5-inch dual outlet configuration. Crafted from high-quality T-304 stainless steel, this muffler offers superior corrosion resistance and a natural mill finish that can be brushed or polished to match your vehicle’s aesthetic. Its 100% welded construction ensures exceptional strength and longevity, making it suitable for demanding driving conditions. The internal X-pipe design enhances exhaust flow, leading to improved engine performance and a more aggressive sound profile. This free-flow muffler promotes optimal exhaust scavenging, which can translate into better horsepower and torque across your vehicle’s RPM range. The reversible design provides installation flexibility, allowing you to position the muffler for optimal sound and performance tailored to your preferences. The ProXS muffler’s compact oval shape measures approximately 19 inches long with a width of 9.5 inches and a height of 4 inches, making it versatile for various vehicle configurations. Its high-temperature continuous-filament fiber acoustic material effectively manages sound levels, reducing unwanted engine noise while maintaining a sporty exhaust note. As part of Borla’s commitment to quality, this product is made in the USA and backed by a Million-Mile warranty, ensuring long-term reliability and customer satisfaction. Whether upgrading your stock exhaust system or customizing a performance build, the Borla ProXS muffler offers a perfect blend of style, sound, and performance for automotive enthusiasts seeking top-tier exhaust solutions.
Features:
- Dual inlet and dual outlet for increased exhaust flow
- Internal X-pipe design for improved performance and sound
- Reversible configuration for flexible installation options
- Constructed from durable T-304 stainless steel resistant to rust
- Welded for enhanced strength and longevity
- Free-flow design to maximize engine performance
- High-temperature continuous-filament fiber acoustic material for sound control
- Natural mill finish that can be brushed or polished




















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