The ultimate street turbo cams to suit 350-550hp SR16VE/SR20VE engines. Suits turbo sizing 48-58mm. Valve timing of primary and VVL lobes is optimised for turbo setups helping produce a broader power band compared to OEM cams. These cams will give excellent throttle response more mid-range and more top end power than OEM. Still maintains good street drivability. Kelford Cams recommend KVS10-BT valve spring kit. Primary lobe spec: Intake: 250°/10.2mm | Exhaust: 246°/8.3mm