Beneath the surface 👀🔥 The anodized Factory 4.1 titanium system from @fmf73 is one of the most sought after bolt-on upgrades for your dirt bike, and for good reason!
Incorporating the latest in FMF Resonance Chamber Technology™, both internally and externally, and made entirely of aerospace grade materials, the 4.1 achieves a shorter overall length that is less susceptible to crash damage and complementary to FMF's Factory Forward Engineering - moving the muffler closer to the motor to centralize mass.
And just quietly, that anodized blue chamber looks damn good 😍