(8 ignition coils+ Iridium Spark Plugs for Porsche Cayenne 03-06 V8 4.5L UF-563. AC Compressor Clutch For HONDA CIVIC 1.8 L 2006-2011 1102608 RC97555. 2) When connecting the inlet and outlet ports with the engine hoses, they should be tight and there should be no air leakage.