If you’re looking to give your Kawasaki KLX 250 S, KLX 250 R, or KLX 300R a serious upgrade, the EVO R series might just be what you need. This slip-on exhaust isn’t just about making noise; it’s about transforming your ride into something that feels alive. With a design that’s steeped in performance heritage, this exhaust is lightweight and packs a punch that you’ll notice right away.
Let’s break it down a bit. The EVO R features a hard anodized oval-shaped aluminum muffler, which not only looks sleek but also helps with weight reduction compared to the stock system. We’re talking serious gains here—think huge horsepower and torque improvements. Plus, the 304 stainless steel mid-pipe means you’re getting durability along with that performance boost. And that red powder-coated stainless steel end tip? It’s not just for show; it adds a nice touch to your bike’s overall aesthetic.
One of the best parts? The design is crafted for maximum clearance, so you won’t have to worry about bottoming out on those rough trails. And if you’re into off-roading, the removable screen-type spark arrestor is a nice touch, letting you customize your setup based on where you’re riding.
Handmade in the USA, this exhaust system comes with a 1-year limited manufacturer’s warranty, so you can ride with confidence knowing you’ve got a solid product behind you. It’s compatible with the Kawasaki KLX 250 S (2020-2023), Kawasaki KLX 250 R (2020-2023), and Kawasaki KLX 300R (2020-2023). Just a heads up, it clears 35s on the KLX models with a bit of trimming, so plan accordingly if you’re thinking about big tires.
In short, if you want to wake up your ride and enjoy a noticeable difference in performance and sound, the EVO R series is a solid choice. It’s not just another exhaust; it’s a way to really connect with your bike.
⚠ 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.