ProXS T-304 Stainless Steel Free-Flow Muffler

The Borla Pro XS muffler (400490) is a universal exhaust component engineered for enhanced performance and straightforward installation. This muffler boasts a free-flow design, intended to improve exhaust gas velocity and power output, coupled with a reversible configuration that offers considerable flexibility during the installation process. Its construction utilizes premium T-304 stainless steel, ensuring excellent corrosion resistance and longevity. The 100% welded construction further solidifies its robust build quality, making it a reliable choice for demanding applications. Key specifications for this muffler include a 2.5-inch offset inlet and a 2.5-inch offset outlet, accommodating a wide range of exhaust system configurations. The oval-shaped case measures 14 inches in body length, with overall dimensions of 4 inches in height and 9.5 inches in width, and a total overall length of 19 inches. Notched necks are incorporated for a simple clamp-on installation, minimizing the need for extensive welding. Inside, a high-temperature continuous-filament fiber (CFF) acoustic material is used to effectively control sound output, providing a desirable exhaust note without excessive loudness. This Borla Pro XS muffler is proudly made in the USA and features a natural mill finish, which can be easily brushed or polished to match custom exhaust aesthetics. While it is a universal muffler, it has a broad fitment list across various Ford and Chevrolet models, including Bronco, C/K, C10, F-100, F-150, Focus, and Mustang from numerous model years.