replacement engine, crank case
Knock sensor 996 (98-05) & Turbo Boxster cayenne and GT (04-06) GT3-1 (99-05)
Knock sensor 997(05-12), 997T-GT2 (07-12), Cayenne (07-12), Boxster (05-), Panamera (10-), Cayman (09-), 997 GT3 (07-11)