Thanks for your input! I would like to upgrade to 740cc injectors, but I am currently in school and can't really afford the price tag that comes with the Nismo 740cc injectors or the ECU upgrade. Right now, I'm more focused on getting my car to be driveable. In terms of new style injectors could you provide any input on JECS vs Nissan OEM? I have read many people saying Nissan OEM is basically manufactured by JECS and so reliability should be equivalent. Are the connectors for the new style Nissan OEM the same as the JECS or do I have to get a separate connector for the JECS? Also would the upper and lower O-rings equivalent as well?