with Porsche's mixed track record on catastrophic engine failures, the idea of a turbo powered out of warranty engine will destroy any resale value for the Boxster.
In terms of prestiege this is a terrible idea. You already have Hyundai and Pontiac comparing their cars to the Boxster in tv commericals. A lowered powered Boxster will only invite more of this. And even worse, the idea of being regularly beaten on the track by a four cylinder Honda s2000 will be like gifting them free
PR.