They will work with the proper tuning, I'm not sure what stage they're considered but flow 175ccs, a good upgrade over stock that as long as you have a healthy hpop it'll keep up
Its a 175 cc "a code" injector. Single shot. The 146 is the nozzle size which is a stock superduty 7 hole nozzle. Tunrd expect 360rwhp max assuming you have an upgraded turbo.