The EXO series from Big Gun� came about from a realization of the need for a bigger and better muffler that could handle the huge demands of the larger, more powerful sport ATV motors. Their performance-driven, quality-made full system exhausts are handmade in the United States from high-quality stainless steel and feature a unique hexagon-shaped aluminum muffler that allows for significantly more volume that delivers a louder but more tolerable deep sound that is sure to make even a grown man feel like a kid again.