2250 1E Camshaft Exhaust Stage 1 Arctic Cat Textron 400 2X4 2007 2008

Features: Stage 1 is designed for low end torque. Adds a 5%-10% power gain. Designed and dyno proven in the USA. Manufactured by utilizing state of the art valvetrain software. CNC machined from 8620 billet, case-hardened steel for an exact fit and lobe profile. Engineered to be drop-in cams, that use stock valve springs (unless otherwise noted).. Select cams feature Hot Cams Improved Throttle Design (ITR) technology; these cams improve throttle response throughout the entire rpm range while providing excellent power gains through the mid-range and top-end.. For dual cam engine.. Off-road competition use only. For best results use with 0925-0695 to increase low end and mid range over OEM with no loss on the top end. Required to use Suzuki DRZ400 valve springs when installing in Suzuki LTZ400 or Arctic Cat DVX400 or Kawasaki KFX400. Kawasaki KLX400R/SR uses stock KLX400 valve springs. Includes auto-decompression mechanism. Exhaust Valve Lash: 0.200 mm..