Muffler Short Dirt LM

The BORLA Muffler Short Dirt LM (Model 40004S) is a high-performance exhaust silencer engineered for off-road and tactical vehicle applications where noise reduction and durability are mission-critical. Designed for operators and enthusiasts who demand quality muffler technology, this universal-fit unit delivers effective sound suppression without compromising exhaust flow. Whether mounted on pursuit vehicles, training grounds, or remote operations, the Short Dirt LM provides the acoustic control necessary in operational environments where discretion matters.

Built from stainless steel construction, the Muffler Short Dirt LM features an 8 x 5 inch round body with 3.5-inch center inlet and outlet ports, optimized for balanced backpressure and efficient scavenging. The 12-inch length and compact 10 x 7 x 18.4-inch profile allow strategic installation in tight underbody spaces without sacrificing silencing effectiveness. Stainless material resists corrosion from harsh terrain, mud, and saltwater exposure—essential for durability in demanding tactical and backcountry environments. The natural finish maintains thermal stability while withstanding high-temperature exhaust cycling during extended operations.

This muffler best serves off-road enthusiasts, tactical operators, and vehicle crews who operate in remote or noise-sensitive zones where vehicle signature matters. At 5.75 pounds, the lightweight design minimizes vehicle mass while delivering professional-grade silencing. The universal bolt-on configuration accommodates most 3.5-inch exhaust systems, making installation straightforward for field maintenance. BORLA's reputation in performance exhaust engineering ensures the Short Dirt LM balances noise reduction with reliability, making it an effective choice for both training and operational deployments where quiet, dependable exhaust management is non-negotiable.