Vario-cam is on the 00-02 boxsters as well but porsche tweeked to slighty to offer better gas milage in the newer cars. Porsche calls it vario-cam+ on the 03 and 04 models. Vario-cam is just variable valve timing like on honda vtec engines....just not quite as extreme. You feel an extra "kick" at 5,000rpm when the engine switches.
Last edited by Adam; 02-27-2005 at 07:57 PM.
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