FMF Racing 18-26 Yamaha YZ450F SS Aluminum 4.1 RCT S/O w/Carbon Cap

This is the FMF Racing SS Aluminum 4.1 RCT slip-on muffler with a carbon fiber end cap, designed specifically for your 2018-2021 Yamaha YZ450F. If you're looking to get more out of your bike on the track or out in the dunes, this exhaust system is a solid choice. It's built to handle the demands of racing and is used by factory-supported teams, which tells you something about its performance and durability.

The core of this system is the 4.1 RCT muffler, constructed from aluminum for a good balance of strength and weight. It's paired with a Powerbomb header, made from tough stainless steel, which is known for its ability to resist corrosion and withstand the heat and stress of off-road riding. This combination is engineered to give you noticeable horsepower gains across the entire RPM range, making your YZ450F feel more responsive and powerful. You'll also find a 94dB insert included, which is important for meeting sound regulations at many tracks and riding areas.

When installing this slip-on muffler, you'll find it fits right onto your existing exhaust system, making the process more straightforward than a full system replacement. The carbon fiber end cap adds a touch of factory-style finish to the overall look of your bike. This system is a popular upgrade for riders who want to improve their bike's performance and sound.