4" x 9.5" x 19" Oval Muffler

The Borla ProXS universal muffler (Part # 40349) is engineered to offer enhanced exhaust flow and sound control. Its reversible design provides installation flexibility, allowing it to be used in systems with a single inlet and dual outlets, or vice-versa. The muffler features a 3-inch center inlet and dual 2.5-inch outlets, with an oval case measuring 4" x 9.5" and a body length of 19 inches (25 inches overall length). Constructed from premium T-304 austenitic stainless steel, this muffler ensures superior corrosion resistance and longevity. The 100% welded construction enhances its strength and durability under demanding conditions. Internally, it employs a free-flow design to improve exhaust performance and is packed with high-temperature continuous-filament fiber (CFF) acoustic material for effective sound dampening. The natural mill finish allows for custom brushing or polishing before installation. Alternatively, if clamping is preferred, wide (2-bolt style) band clamps are recommended (not included). Borla backs this product with its Million-Mile warranty, underscoring the brand's commitment to quality and durability.