Features V CAM system for higher levels of tuning compared to Step 1 and Step 2. Specially designed cam has duration of 264°, valve lift 10mm. Reviewing cam material, profile and valve timing change, Step Pro is suited to higher power outputs at high rpm. Billet camshaft is used to enhance strength even when used with upgraded Valve Springs at high RPM (recommended limit 8800rpm). Added strength facilitates a hollow cam design has allowing Step Pro to be 560g lighter than Step 1 and Step 2. Valve timing has 50° adjustment from 80°~130° Exhaust cam can be selected to suit vehicle specifications. Step 2 Valve Springs are required. Recess modification of the cylinder head is required.