If you’re looking to amp up your ride’s sound and performance, the EVO U series is where it’s at. This isn’t just another exhaust system; it’s a game changer for utility ATVs, sport utility ATVs, and Side x Sides. Seriously, if you’re tired of that stock exhaust that sounds like a tin can rattling down the road, this is your ticket to a much more aggressive growl that’ll turn heads.
Let’s talk about the build quality. The muffler is crafted from high-temp black thermal coated aluminum, which not only looks sleek but also stands up to the elements. You’ve got a TIG welded reinforced muffler bracket that means it’s built to last, even when you’re pushing your machine to the limits. The mid pipe is made from 304 stainless steel—yeah, that’s the good stuff—so you know it’s going to hold up over time.
Weight-wise, this thing is a feather compared to your stock setup. You’ll notice a significant difference, both in how your ATV handles and in the power it puts down. We’re talking massive gains in horsepower and torque, which is what we all want, right? Plus, the design is sleek enough to give you maximum clearance, so you won’t have to worry about it snagging on anything when you’re out on the trails.
And let’s not forget about the sound. It’s deep, throaty, and just downright MACHO. You’ll appreciate the removable screen-type spark arrestor that comes with it, which is a nice touch for those who want to keep things legal while still enjoying that killer sound. Oh, and if you’re looking to tone it down a bit, there’s a Vortex Quiet Insert included too.
Handmade right here in the USA, this exhaust system isn’t just a purchase; it’s an investment in your ride. Plus, it comes with a 1 Year Limited Manufacturer's Warranty, so you can hit the trails with confidence. If you’ve got a Yamaha Grizzly 660 from 03-06, the 12-2462 Big Gun EVO U Slip On Muffler is the upgrade you didn’t know you needed.
Other Part Numbers:
Big Gun Exhaust #620723
⚠ 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.