If you're looking to give your Yamaha Rhino 660 (04-08) a serious upgrade, the EVO U Series Slip-On Muffler is where it's at. This isn't just any exhaust; it’s built for those who want to unleash the beast in their utility ATV or Side x Side. The deep, throaty growl it produces is something that’ll turn heads and get your adrenaline pumping. Trust me, when you swap out that stock exhaust that sounds like a tin can, you’ll feel like you're riding a whole new machine.
Let’s talk about what makes this muffler stand out. First off, it’s got a high-temp black thermal coated oval-shaped aluminum design that not only looks sleek but is built to last. The 304 stainless steel mid-pipe is solid and resistant to rust, which means you won’t have to worry about it falling apart after a few rides. Plus, the black powder-coated stainless steel end tip adds a touch of style that pairs well with any rig.
But it’s not just about looks; this muffler is much lighter than stock, which means you’ll notice a difference in performance right away. We're talking about massive horsepower and torque gains that can really take your riding experience to the next level. The design is also sleek enough to allow for maximum clearance, so you won’t have to worry about getting hung up on rough terrain.
Another cool feature is the removable screen-type spark arrestor that comes included, along with a Vortex Quiet Insert if you want to tone things down a bit. It’s nice to have options, right? And let’s not forget, this bad boy is handmade in the USA, so you know you’re getting quality craftsmanship.
With a 1 Year Limited Manufacturer's Warranty backing it up, you can ride with confidence. If you're ready to ditch that restrictive, stock exhaust and make your Rhino roar, the 12-2223 Big Gun EVO U Slip-On Muffler is definitely worth considering. It’s raw, it’s powerful, and it’s just waiting to help you dominate the trails.
Other Part Numbers:
Big Gun Exhaust #620681
⚠ 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.