all the info tells you that a factory injector will work not true there is a taller than stock injector that is required. My son spent hours online and on the phone with them. he finally found out the problem from one of the guys he follows on Instagram. Factory injectors are EV14S (standard) which are 48.65mm tall. in order to avoid any modifications an EV14L (Long) 60.65mm injector will be required.