ARP 208-4307 Head Stud Kit for HONDA H23A ymm_21 remapping the ECU is mandatory

remapping the ECU is mandatory in order to prevent potential “check engine light” warning signals

The Evolution Line (Titanium) will reduce overall vehicle weight while delivering extra power and torque through the whole rev range

Available for all countries (United States excluded)

4 / 2950 rpm

AEM’s legendary Digital Wideband O2 AFR UEGO Gauge is a wideband UEGO air/fuel ratio controller (AFR) and gauge in one

ARP 208-4307 Head Stud Kit for HONDA H23A ymm_21 remapping the ECU is mandatoryIt 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 uses a premium grade 8740 alloy that is rated far superior to aircraft quality. Each stud is placed vertically in special racks and precisely heat treated to 200, 000 psi. This procedure ensures complete heat