72s
hellow,gnfury-you will love your new injectors i upgraded from 55s to 72s with a red armstrong street chip and can,t tell the diffrence but i can see it on my 02readings on my scanmaster the last injectors you will need for a while,taking my car out today i will really try them out,good luck.p.s get them from racetronic they have very good deals and will deliver fast.mylast1//p.s.tell me how you like them after you get them.mylast 1. my street manners are the same!!!!!