Modular Exhaust was recently selected to provide 235 Exhaust Mufflers to DLA Land and Maritime Supply Chain under contract number SPE7L1-16-V-2541. The exhaust mufflers are model NSN 2990011883281. DLA controls the vehicle interfaces between the exhaust and HMMWV M998, but Modular Exhaust is responsible for designing and qualifying muffler internals to stringent flow and noise specifications.
