FMF Racing KTM 85SX 18-24/HQV TC85 18-24/Gas Gas MC85 21-24 Factory Fatty Pipe

FMF Racing is well-known for making performance exhaust systems for off-road motorcycles. This Factory Fatty Pipe is built specifically for your 2021 Gas Gas MC 85, aiming to improve how your engine breathes and sounds. It's designed to work with the stock muffler, making it a straightforward way to get more out of your bike's two-stroke engine.

What sets this pipe apart is how it's constructed. The header section uses a strong 19-gauge steel, while the body is made from a lighter 20-gauge steel. This combination helps create the signature FMF 'Factory' sound. The seams are hand-pounded, which means they are smoother on the inside, allowing exhaust gases to flow more freely without as much restriction. This improved flow can lead to a more responsive throttle and a bit more power across the RPM range.

When you install this pipe, you'll notice it fits right in with the original setup. It comes with the necessary O-rings to help seal the connections properly. This pipe is a solid option if you're looking to get that classic FMF performance and sound on your MC 85.