I have a 2000 civic si and wanted to upgrade my injectors, my setup is a stock b16a2 motor running 7psi boost on a revhard turbo with an fmu and the stock injectors. I heard people upgrade their injectors to 310cc or 340cc which one would be better for me. It runs a little lean uder boost. Thanks

 

if thats all the power ur ever gonna make then ya upgrade to 310 or 340. but if in the future u plan on making more power then upgrade to something bigger like 440 or 550. they all cost similar so its not really a price issue.