ARP Head Stud Kit - GM 2.2L ECOTEC - 231-4701 Nissan 240Z The factory plastic harness cover

The factory plastic harness cover on the coil plug area needs to be removed for proper fitment

The metal pin must be carefully removed from the Mishimoto thermostat with pliers before installed into plastic thermostat housing

No need to remove or hijack inputs from OEM sensors

Mishimoto 2007-2009 Nissan 350Z silicone radiator hose kits are made with a dual layer combining high grade silicone and heat-resistant embedded fibers to provide efficient heat reduction and increased pressure tolerance

5 Turbo EJ255 STI 04-07 Subaru Impreza WRX STI 2

ARP Head Stud Kit - GM 2.2L ECOTEC - 231-4701 Nissan 240Z The factory plastic harness coverIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all out competition powerplants. Simply stated, theres not a better stud setup on the market today. For openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000 alloy that are rated far superior to aircraft quality alloy steels. Secondly, each stud is placed vertically into special racks and precisely heat treated