STI or EVO Injectors
 

I can get a set of both stock injectors pretty cheap. Do you guys know if both will fit and go into a Beta 2 without any problems? I'm pretty sure the Evo injectors will but not 100% on the Sti ones.

Only the EVOX injectors will work on the Beta 2. Older EVOs had the 4G63 engine and they are a completely different injector style. STi pinks and WRX blue injectors will work with some fab work. Subies have a completely different way of sealing the injector against the intake manifold so its not a straight swap. Nissan 350/370z and GT-R injectors swap right in as well.