Skunk2’s Tuner Series Camshafts for R18A1-based engines feature Fast Ramp and AMAX profile technology, which increases overall performance and results in unmatched response from idle to redline. AMAX technology simply maximizes the area under the lift curve but without compromising reliability or valvetrain stability. Skunk2’s profiles feature more duration than competitors’ at lifts above 1mm, resulting in greater efficiency and more power. And thanks to Fast Ramp, the same technology used in Formula One racing, seat timing is reduced, which results in additional cylinder pressure and more torque but without compromising valvetrain longevity. The Stage II R18A1 camshafts utilize the stock VTEC economy lobe. This mean you do not sacrifice MPG while cruising, your MPG will remain the same under cruse loads. The Stage II cam also provides more lift and duration, and is a drop in cam that requires no spring or retainer upgrade. To extract the utmost power a tuning device such as Hondata would be required. <--- c/o skunk2.com product description
only need a tune for unlocking all the power you can from it.