Description
The Borla ProXS Universal Muffler (Part Number 400493) offers exceptional performance and sound control for automotive enthusiasts seeking a high-quality upgrade. Constructed from durable T-304 stainless steel, this muffler is resistant to rust and corrosion, ensuring long-lasting reliability. Its 100% welded design enhances strength and durability, making it suitable for demanding driving conditions.
Featuring a dual inlet and dual outlet configuration, the muffler includes an internal X-pipe for optimized exhaust flow, resulting in improved horsepower and torque. The free flow design minimizes backpressure, promoting better engine performance. Notched necks allow for straightforward clamp-on installation using 1-inch wide band clamps, which are not included but readily available. The reversible design adds installation flexibility, accommodating various exhaust layouts, while the natural mill finish provides an option for brushing or polishing before installation.
This universal muffler measures approximately 19 inches in length with an overall length of 24 inches, and an oval body measuring 4 inches by 9.5 inches. Its high-temperature continuous-filament fiber (CFF) acoustic material helps effectively manage exhaust sound, delivering a deep, refined tone without excessive noise. The Borla ProXS Muffler is backed by a Million-Mile warranty, exemplifying Borla’s reputation as the world’s most experienced exhaust brand. Whether upgrading a performance vehicle or customizing a project, this muffler provides an excellent balance of performance, sound control, and durability.
- Dual inlet and dual outlet configuration with internal X-pipe for optimized flow
- Notched necks designed for clamp-in installation using 1
















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