264° Stage 1 cams to suit MZR engines fitted with a turbocharger. Ideal for turbo sizing 48mm-54mm. These cams work with OEM valve spring if less than 14psi boost and maintaining OEM rpm limit. Excellent throttle response and improved mid-range power. For high mileage engines or higher boost and rpm Kelford Cams recommend KVS17-X valve spring upgrade.
