OEM Replacement Valves are manufactured to OEM specifications from SUH3HT Steel for added corrosion and oxidization resistance.
Performance Valves feature a forged one-piece construction, nitride coating, modified radius, swirl polish, chromed stems, and stellite tips. This provides reduced friction for quicker/higher revs and a longer valve life. Heavy Duty Springs Recomended

Exhaust Valve Stainless Psychic CRF450R 13-20 CRF450RX 17-19 (Heavy Duty Springs Reccommended)