My car had Beru Ultra 14FGR-6KQU 4 prong type plugs in it when I changed them. I went with Bosch FGR6KQE 4-Prong Spark Plugs.
Can't beat this deal.
 6 Pieces Bosch FGR6KQE 4 Prong Spark Plug Porsche 911 Boxster Cayenne 8CYL | eBay
EDIT: You didn't state what motor you have. Those plugs are for the 3.2L motor.
http://www.boschautoparts.com/auto/spark-plugs/super-plus-spark-plugs?partId=7413
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2003 Boxster S
| 987 Air Box | K&N Air Filter | 76mm Intake Pipe| 996 76mm TB | 997 Distribution T | Secondary Cat Delete Pipes | Borla Muffler | NHP 200 Cell Exhaust Headers |
Last edited by KRAM36; 03-01-2015 at 09:04 PM.
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