TRX400EX Slip-On Mufflers / Silencers

At Dune Goons Shop, we know the right exhaust can completely change the way your TRX400EX sounds—and performs. That’s why we offer a solid lineup of slip-on mufflers and silencers built for power, style, and trail-approved tone. Whether you're looking for a deeper growl, better airflow, or just want to replace a worn-out stock muffler, this collection has you covered. Designed for direct fitment on the Honda TRX400EX, these slip-ons are easy to install and deliver instant performance and sound improvements. Ride louder, smoother, and stronger—with gear that works as hard as you do.