If you're looking to give your Honda TRX 300EX a serious boost, the EVO R Slip On Muffler is where it's at. This isn't just some flashy upgrade; it's a piece of gear that’s been crafted with the kind of attention to detail that only comes from years of experience in the game. You can feel the difference the moment you fire it up. It’s lighter than the stock exhaust, which not only helps with overall performance but also gives you that crisp, aggressive sound that turns heads on the trails.
The EVO R series is built tough, featuring a hard anodized oval-shaped aluminum muffler that’s not just about looks. It’s designed to withstand the rigors of off-road adventures while keeping weight down. Plus, the TIG welded reinforced muffler bracket adds extra durability, so you know it can handle the bumps and jumps without a hitch. And let’s not forget the 304 stainless steel mid pipe—this thing is built to last.
One of the best parts? You get some serious gains in horsepower and torque. We're talking about a noticeable difference in how your ATV performs, whether you're tearing up the trails or just cruising around. The sleek design means you won’t have to worry about clearance issues either, making it perfect for those tight spots and tricky angles.
And if you're concerned about keeping things safe, the removable screen-type spark arrestor is a nice touch. It’s all handmade right here in the USA, so you know you’re getting quality craftsmanship. Plus, it comes with a one-year limited manufacturer’s warranty, which is always a good peace of mind.
Just a heads up, the head pipe isn’t sold separately, so if you’re looking to convert this muffler into a full system, you’ll need to grab that separately. But if you’re just after a solid slip-on that delivers on performance and sound, the Big Gun EVO R Slip On Muffler for the Honda TRX 300EX (93-13) is a solid choice.
Other Part Numbers:
Big Gun Exhaust #622407
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Big Gun Exhaust was founded in 1997 by former professional motocross racer, Mike Young, Jr., a three-time winner of the AMA National Four-Stroke Championship. He knew what it took to win the races and used that knowledge to start a business of manufacturing high-performance, quality exhausts for the motocross and sport ATV market, and eventually the side-by-side and street markets as well.
New Ownership, New SuccessAfter more than a decade of success under Young, Big Gun Exhaust was sold to a new owner in the hopes of facilitating further growth. In 2010, the company changed ownership once more, which called for tremendous restructuring in an effort to improve the brand. The new management and sales team helped rebuild the Big Gun Exhaust brand and streamline production and manufacturing processes under one roof in Corona, California. The more efficient manufacturing process resulted in a new level of success never before seen with Big Gun. Today, Big Gun Exhaust boasts one of the largest four-stroke exhaust product lines available and caters to the MX, Sport ATV, Utility ATV, Side-by-Side, Street, and Scooter markets.
What Makes Big Gun Exhaust Special?All quality Big Gun Exhaust products are made right here in the USA using some of the latest cutting-edge equipment, and design and production techniques. Big Gun Exhaust takes pride in having one of the fastest lead times in the industry, which has allowed it to see exponential growth in the last few years.
Big Gun Exhaust has garnered a huge customer base all around the world thanks to its emphasis on customer service and satisfaction. Its partnerships with successful race teams and riders only further solidified the brand’s dedication to competing and winning. The company’s experienced team continues to work closely with racing teams, sponsoring different motorsports events and gathering valuable data to be used in improving its product lineup.
Big Gun Exhaust’s R&D department has been tirelessly working to stay ahead of the competition and develop new innovative systems that exceed customer expectations. The successful ECO, EVO, and EXO lines of four-stroke exhaust systems have been accompanied by the premier EXO stainless series which set the bar even higher for aftermarket performance exhausts in the growing ATV and side-by-side markets.
Upgrade to Big Gun Exhaust TodayBig Gun Exhaust is one of the leading ATV, Motocross, UTV, and Side-by-side exhaust manufacturer in the USA. If you are interested in upgrading to one of its systems, look no further. Vivid Racing has a wide selection of products from Big Gun Exhaust, including exhaust tips, fuel regulators, mufflers, headers, power boxes, packing kits, snorkel kits, and piggyback modules. If you cannot find a particular part above or have questions regarding Big Gun Exhaust, please call our specialized sales team at (480) 966-3040.