Big Gun 19-23 Honda CRF 450X EXO Aluminum Full System Exhaust

The stamped 304 stainless steel coned inlet on this Big Gun EXO Series exhaust is a key design choice, allowing for significantly more volume right from the header. This isn't just about making noise; it's about optimizing how the exhaust gases flow out of your 2019-2023 Honda CRF 450X's engine. The larger, hexagon-shaped aluminum muffler housing that follows is engineered to handle the demands of more powerful motors, giving you a deeper, more tolerable sound while also helping to reduce heat buildup compared to stock systems.

This full system is built to make a difference you can feel. The internal sound wave altering technology works with the larger muffler volume to create that signature deep tone, and you can expect notable horsepower and torque gains thanks to the improved flow. The mid-pipe is made from 304 stainless steel for durability, and the muffler itself is lightweight brushed aluminum. It also comes with a removable screen-type spark arrestor, which is important for trail riding, and a black powder-coated stainless steel end tip for a clean look. The muffler brackets are TIG welded for strength, ensuring this system stays put.

When installing this exhaust, keep in mind that it is not CARB approved and cannot be shipped to California. It's a well-built system designed to improve your CRF 450X's performance and sound.