TRX400EX Full Exhaust Systems

At Dune Goons Shop, we believe your TRX400EX deserves to breathe—and sound—like a beast. That’s why we offer full exhaust systems that deliver serious gains in power, throttle response, and tone. Whether you're building a performance machine or replacing a tired stock setup, these complete systems include everything you need to upgrade your ride from head pipe to muffler. Designed for a perfect fit on the Honda TRX400EX, they’re built to handle the heat, improve flow, and give your quad that aggressive edge—on the track, trail, or dunes.