Transform your 4-stroke with the FMF Titanium Factory 4.1 Complete System. This complete exhaust system includes the Factory 4.1 RCT silencer and titanium Megabomb header for maximum performance gains.

The Factory 4.1 RCT silencer represents FMF's premium 4-stroke technology. Titanium construction saves significant weight while handling extreme temperatures. The carbon fiber end cap adds a premium look while reducing weight.

The Megabomb header features a resonance chamber that smooths power delivery and increases mid-range torque. This is one of the most effective bolt-on upgrades for your machine.

This complete system fits Honda CRF250R (2022-2024). Installation is straightforward with direct bolt-on fitment. All necessary mounting hardware is included.

FMF Racing has been the leader in 4-stroke exhaust technology. Ships fast from Dune Goons with next-day fulfillment on orders placed before 2pm.

The Megabomb header features a resonance chamber that smooths the power curve and adds mid-range torque. Combined with the Factory 4.1 silencer, this system delivers significant horsepower and torque gains across the entire powerband.

All necessary mounting hardware and installation instructions are included. FMF recommends professional installation for optimal results. This complete system has been tested extensively on both the dyno and the track.