If you're looking to give your Polaris Sportsman a serious upgrade, the EVO U Series Muffler is a game changer. This isn't just another exhaust; it's a statement. With a deep, throaty tone that really turns heads, this muffler is built for those who crave raw power and a sound that screams performance. Designed for utility ATVs, sport utility ATVs, and Side x Sides, it's not for the faint-hearted.
Swapping out that stock exhaust—which let's be honest, sounds more like a tin can than a beast—for the EVO U is like trading in a bicycle for a motorcycle. You’ll notice the difference immediately. We're talking about a high-temp black thermal coated oval-shaped aluminum muffler that’s not just about looks; it’s tough and built to last. The TIG welded reinforced brackets ensure it stays put, even when you’re tackling the roughest trails.
Under the hood, you’ll find a 304 stainless steel mid-pipe that’s not only durable but also much lighter than the stock setup. That means you get impressive horsepower and torque gains without the extra weight. Plus, the sleek design maximizes clearance, so you can navigate obstacles without worrying about scraping your new investment.
And if you're into customization, the EVO U has you covered. It comes with a removable screen-type spark arrestor and a Vortex Quiet Insert, allowing you to tweak your sound to fit your style. Handmade in the USA, this muffler also comes with a 1-year limited manufacturer’s warranty, so you can hit the trails with confidence.
Just a heads up: you can’t buy a head pipe to make this a full system, so it’s sold as either a slip-on or a full system. But trust me, once you hear that growl, you won’t want to look back. If you’ve got a Polaris Sportsman 550, XP, H.O., EPS, or EFI from 2009 to 2014, this is the upgrade you’ve been waiting for.
Other Part Numbers:
Big Gun Exhaust #624027
⚠ 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.