The Big Gun Exhaust EVO R Full System (Part Number: 09-4313) is designed specifically for those who want to enhance their riding experience on the Kawasaki KLX 300R and KLX 250 S/R/SF models from 1994 to 2014. This exhaust system stands out not just for its performance but also for its craftsmanship.
Many riders have noted the noticeable difference in both sound and performance after installing the EVO R system. One customer shared, "I was amazed at how much lighter it felt and the sound is just perfect—definitely an upgrade from stock." Others have commented on the sleek design, which allows for better clearance during rides.
While the EVO R series is not CARB compliant and cannot be sold in California, it is a fantastic choice for riders looking to improve their bike's performance in other regions. The system is tailored to fit:
Whether you're hitting the trails or just looking to get more out of your ride, the Big Gun Exhaust EVO R Full System is a solid investment that many riders have been pleased with. Upgrade your bike and enjoy the ride!
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
1994-1996 Kawasaki KLX250R |
KLX250R | 1994-1996 |
|
2006-2007, 2009-2010, 2012-2014 Kawasaki KLX250S |
KLX250S | 2006-2007, 2009-2010, 2012-2014 |
|
2009-2010 Kawasaki KLX250SF |
KLX250SF | 2009-2010 |
|
1996-2008 Kawasaki KLX300R |
KLX300R | 1996-2008 |

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.