If you're serious about motocross, the Exo R Series exhaust system is something you really need to check out. This isn't just another shiny piece of equipment; it's a game-changer for those of us who crave power and reliability on the track. I’ve had the chance to put this system through its paces, and let me tell you, it delivers.
The first thing you notice is that unique hexagon-shaped aluminum muffler. It’s not just for looks; it’s designed to maximize efficiency and volume. When you fire up your bike, the sound that comes out is bold and aggressive, but it doesn’t rattle your bones. The stainless steel coned inlet really cranks up the volume while keeping things manageable, so you can enjoy that deep exhaust tone without it being unbearable.
One of the best parts? It helps keep the heat down, which is crucial when you’re pushing your bike to the limit. I’ve noticed a significant boost in horsepower and torque, which makes a real difference when you’re tearing up the track. The craftsmanship is solid, too—everything from the TIG welded brackets to the carbon fiber end tip feels like it’s built to last.
Plus, it’s handmade right here in the USA, so you know you’re getting quality. And if you’re worried about fitment, it works perfectly with the Husqvarna FC 450 from 2016 to 2018 and the KTM 450 SX-F for the same years. Just make sure you double-check your bike’s specs.
In short, if you’re looking to elevate your ride and enhance your motocross experience, the Exo R Series is worth every penny. It’s all about that perfect blend of power, sound, and durability.
Features:
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2016-2018 Husqvarna FC450 |
FC450 | 2016-2018 |
|
2016-2018 KTM 450 SX-F |
450 SX-F | 2016-2018 |

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.