Description
The Borla Pro-XS 2.5-inch Tubing Muffler (Part Number 40348) is engineered for optimal performance and durability in automotive exhaust systems. Designed with a reversible configuration, this muffler offers installation flexibility whether your system has a single inlet with dual outlets or dual inlets with a single outlet. Its high-quality T-304 austenitic stainless steel construction ensures resistance to rust and corrosion, providing long-lasting reliability under demanding conditions. The 100% welded, free-flow design enhances exhaust efficiency and engine performance while maintaining durability with a robust, seamless build.
Featuring a natural mill finish, this muffler can be easily brushed or polished before installation to match your vehicle’s aesthetic. The high-temperature continuous-filament fiber (CFF) acoustic material inside effectively reduces noise, delivering a refined sound profile without compromising performance. Compact yet substantial, the 19-inch body length and 4-inch x 9.5-inch oval shape make it suitable for a wide range of vehicle configurations. Backed by Borla’s Million-Mile warranty, this product exemplifies quality craftsmanship and engineering excellence.
As a universal part from a leading exhaust brand, the Borla Pro-XS muffler is ideal for enthusiasts seeking a reliable, high-performance solution that combines sound control, installation versatility, and corrosion resistance. Whether upgrading your existing system or building a custom exhaust setup, this muffler delivers consistent results and peace of mind, knowing it’s made in the USA with the brand’s renowned commitment to quality and innovation.
Features:
- Reversible design allows flexible installation options for single inlet and dual outlets or dual inlets and single outlet configurations
- Constructed from high-quality T-304 austenitic stainless steel for corrosion and rust resistance
- 100% welded build ensures maximum strength and durability
- Free flow design improves exhaust performance and engine efficiency
- High-temperature continuous-filament fiber (CFF) acoustic material reduces noise for a refined sound
- Natural mill finish can be brushed or polished prior to installation to match vehicle aesthetics
- Universal fit suitable for a variety of vehicles and exhaust setups
- Backed by Borla’s Million-Mile warranty for long-term reliability
- Made in the USA, demonstrating quality craftsmanship and engineering excellence

























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