The Full Billet S3 Cams is a Hydraulic Lifter profile for the Evo 9 4G63. These cams are meant for the 700whp+ to take advantage of a very large turbos and high RPMs, these are NOT suggested for anyone running smaller.
**If using aftermarket cam gears(especially AEM) check the bolt lenght, some cam gears are too thick for the OEM bolt on the Billet cams, a 40mm underhead lenght bolt may be necessary in this case**