No , my tuner has dyno proven 30-40 more whp on e30 tune with my turbo on just uprated injectors. If I want more than that I would have to add in the fuel pump. Though honestly 340 ft lbs wheel tq is already nuts. I bought injectors on a whim because I got them for $330 from RockAuto. I had seriously not been to concerned previously. Though since the jag injectors were proven to be the 30% more injectors sold on other sites and the RockAuto price it was a why not.