If you're tired of the stock exhaust on your ATV that sounds more like a lawnmower than a beast, the EVO U series is here to change that. This isn’t just any exhaust; it's built for those who appreciate raw power and a sound that turns heads. Designed specifically for utility ATVs, sport utility ATVs, and Side x Sides, this exhaust system delivers a deep, throaty growl that makes your ride feel like a whole new machine.
Let’s talk about what makes this system stand out. First off, the high-temp black thermal coated oval-shaped aluminum muffler not only looks sleek but is also built to withstand the heat of tough rides. The TIG welded reinforced muffler hanger means you won’t have to worry about it rattling loose after a few bumps on the trail. Plus, the 304 stainless steel mid pipes and 2 into 1 head pipes ensure durability and performance—no cheap materials here.
Worried about weight? This exhaust is much lighter than the stock setup, which means you’ll feel the difference in handling and agility. And let’s not forget about the performance gains—expect significant boosts in horsepower and torque. It’s designed to maximize clearance too, so you won’t have to stress about hitting obstacles on those tight trails.
What’s cool is that it comes with a removable screen-type spark arrestor and a Vortex Quiet Insert for those days when you want to keep it a bit quieter. And did I mention it’s handmade right here in the USA? You can feel good about supporting local craftsmanship.
Oh, and for those of you rocking a Polaris RZR 800 (2009-2014) or a Polaris RZR S 800 (2009-2014), this exhaust fits like a glove—no need for any crazy modifications. Just swap out the stock exhaust and enjoy the new sound and performance. Plus, it comes with a 1 Year Limited Manufacturer's Warranty for peace of mind.
So, if you’re ready to ditch that tinny stock exhaust and embrace a sound that screams power, the EVO U series is your ticket to a more exhilarating ride.
Other Part Numbers:
Big Gun Exhaust #623775
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Vehicle Make/Model | Year | Trims |
|---|---|---|
| Polaris RZR 800 | 2014 | Base |

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.