Bigger fuel injectors

is it possible to put bigger fuel injectors in my 1990 celica ST from another vehicle that will help my performance any

get a 3sgte...that'll solve your hp problem...and the injectors will help but not a very noticeable difference

if yours the 3SGE or 3SGTE engine, you can try getting the fuel injectors from the ST205 GT4 (6th gen). They are 540cc units (compared to the 430cc on the 5th gen's 3SGTE) and they slot in nicely in the 5th gen's engines (which are essentially the same). But u shld then put in bigger fuel pumps, although the ST205s use the same fuel pump as the ST185.

thats true...but hks also make injectors for the alltrac at 700cc...going for $285...thats what i have in my alltrac..and also a upgraded fuel pump intank and a upgraded supra fuel pump from hks for external pump...but after that make sure to have your ecu tuned by jet company...so youll run really rich..which is great for turbo cars...less lag..