Hi,
The Boxster comes either with Bosch or Beru Spark Plugs. Both are equally good, and were used interchangeably at the Factory. I don't believe that any of the
Fancy Plugs out there offer
any advantages over OEM, and the Platinum Plugs are a definite
No-No.
The OEM plugs are not readily available from local sources such as NAPA, PepBoys, etc. You can get them at a Dealer for a premium - usually $6-$10 @.
The Bosch Plugs (Bosch SuperŪ # FR7LDC4) are currently on sale for $3.19@ here:
http://shop.store.yahoo.com/eagleday/993bilovaco.html
They're listed on the site as Bosch Platinum, but they're not, it's a Typo. I ordered 2 sets to better ammortize the S/H costs. Hope this helps...
Happy Motoring!...Jim'99