Big Gun Exhaust System Kit

Big Gun Exhaust System Kits: Race Heritage Meets Trail-Ready Performance

When it comes to complete exhaust system kits for ATVs, UTVs, and powersports machines, few names carry the credibility of Big Gun Exhaust. Founded in 1997 by three-time AMA Four-Stroke National Champion Mike Young Jr., the brand was built on a simple principle: manufacture exhausts that actually win races, then bring that technology to the everyday rider. Today, Big Gun operates from a dedicated facility in Corona, California, where all research, development, manufacturing, and testing takes place under one roof — a commitment that shows in every weld.

A Full System Kit for Every Rider and Machine

What sets Big Gun apart in the exhaust system kit category is the depth and specificity of their product lineup. Rather than offering one-size-fits-all solutions, Big Gun engineers distinct series for different riding styles and machine types:

• EXO Series — Big Gun's flagship premium line, engineered for maximum airflow and power. The EXO Stainless variant uses full 304 stainless steel construction from header pipe to mid-pipe to muffler, built to withstand the most demanding riding conditions. Available in full systems, slip-ons, and dual exhaust configurations for sport ATVs and UTVs.
• EVO R Series — The race-focused option, delivering horsepower and torque gains across the RPM range. Hand TIG-welded 304 stainless steel mid-pipes mate to hard-anodized 6061 aluminum oval mufflers with a titanium finish. The sleek silencer design is engineered to maximize clearance and avoid contact with brake calipers.
• EVO U Series — Designed specifically for utility ATVs, sport-utility ATVs, and Side-by-Side vehicles. High-grade aluminum mufflers with a high-temperature black finish pair with 304 stainless steel pipes and TIG-welded reinforced brackets for working machines that demand durability alongside performance.
• EVO M Series — A long-running Big Gun staple that brings the brand's proven performance to 50cc–110cc youth ATVs and pit bikes, offering the same quality construction as full-size systems.
• ECO Series — The value-driven entry point, built from 0.049-inch stainless steel tubing and 6061 brushed aluminum muffler canisters. ECO kits include optional Vortex Quiet Insert compatibility for 98dB operation, keeping riders compliant with track and trail noise regulations.
• Ballistic Series — Targeted at the performance-minded but budget-conscious rider, delivering instant horsepower and torque gains without the premium price tag.

Built-in Quality That Goes the Distance

Across every series, Big Gun exhaust system kits share a core set of construction standards: hand TIG-welded 304 stainless steel construction, 6061 aircraft-grade aluminum muffler housings, and USFS-approved removable spark arrestor screens. These aren't features reserved for top-tier models — they're the baseline. Compatible makes include Yamaha, Honda, Kawasaki, Polaris, Can-Am, Suzuki, and more, with fitment spanning everything from CRF dirt bikes to Raptor sport quads to RZR Side-by-Sides.

Big Gun also backs their exhaust system kits with genuine after-sale support. Their muffler refurbishing service — available when a system wears out or sustains damage — is a rare offering in the aftermarket exhaust world, reflecting the brand's long-term approach to customer relationships.

Whether you're chasing podiums or exploring backcountry trails, Big Gun's exhaust system kits deliver the real-world power and rider-tested durability that over 25 years of motorsport involvement demands.