COMP Cams Camshafts 54-696-11 Hustler Stage 1 Hydraulic Roller Cam for CT525 Crate Engine Hustler CT525 Grind with .004" more lift and +15 degrees more duration. Best for tracks that just check lift. Not a drastic sound change. COMP Cams Hydraulic Roller NSR Drift Camshaft CT525 Crate - Stage 1