ProXS Universal Muffler

The Borla 40357 ProXS is a universal performance muffler constructed from T-304 stainless steel, offering durability and resistance to corrosion. Its design is reversible, allowing for flexible installation options to suit various exhaust system configurations. The muffler has a 2.25-inch offset inlet and a 2.25-inch center outlet, with an oval body measuring 4 inches by 9.5 inches and a body length of 14 inches, resulting in an overall length of 19 inches. This ProXS muffler is specifically noted as being compatible with trucks. Borla, a pioneer in exhaust performance, states that their ProXS mufflers utilize proven, high-performance technology at an affordable price point. The muffler is made in the USA.