I have a IX and I just purchased an safc2, leaning towards the Zeitronix Wideband to use to tune and also for a boost gauge.

I know from some reading that I should also get a walbro and some injectors...

My mods for now are just TBE.

so anything else needed for tuning and what future stuff should I buy?

also what size injectors would be good?

 

i would do a little bigger injectors, (depending on how far you want to go with your setup, warbro 255 fuel pump, Wideband is a must for tuning espically if your going to tweek it yourself, i would go with a PLX box, or AEM wideband, just watch your AF's! good luck