Fuel tank, exhaust system
996 Carrera (98-05), 996 GT3 (99-05), 997-1 (05-08) Hexagon-head bolt M8 x 140, for mounting the exhaust.
996 (00-05) Oxygen sensor in front of catalytic converter, stricter emission control
996 (4 wheel drive 3.4), 996 Turbo 3.6 (00-), 997 Turbo 3.6 (06-), GT3-1 3.6 (99-05), GT3-2 3.6 (06-) Fuel filter