the discs are for tuning the pipe..like say you want more top end, you add more discs (i think.......) and adding more discs makes it louder..so you can tune the pipe to how you want it, power or sound.
A forum community dedicated to all Suzuki ATV owners and enthusiasts. Come join the discussion about performance, modifications, repairs, troubleshooting, maintenance, and more! Open to all models including the ltz 400, raptor 660, eiger 400, ltz 250, and raptor 350.