The RV275's are a 24v injector and can not be used for a 12v truck.

Adding injector size will add temps and lower fuel milage some.

Anyone who tells you that they added bigger injectors and get better fuel milage is telling you a nice story.All that added black smoke out the pipe does not equal fuel milage.Your going to have to think about what you want to do with the truck,power or milage and then make your decision.The injector size and tunes for both are very different and if your on a limited budget like you are then this needs to be considered.......Andy

P.S.-All I can say to BTI is......

 

I have stock injectors and stock delivery valves. I get heat and black smoke just from them with little pump fiddling(no plate and afc adjustments which I still don't have adjusted right yet) and 19* of timing. I get 18.5mpg sometimes but on my last tank went down to 11 for some reason. Part of my problem might be the H1C that I have now, but it was free and I needed a charger.

 

I have no plate and havent messed with the afc much, stock 181 dv's, stock injectors, stock turbo and it will wrap the pyro pretty quickly, Lucas and I were messing with the timing a little bit and when we put the gauge on it it had slipped to 11 degrees bumpin her back up to 16.5 and see how it does. Should cool temps down a hair. If your on a budget go with some 215 injectors or just save your money till you can afford both the turbo and some good injectors.

 

well i guess 215 it is then. need to shop around and see what they run. thanks for the input guys!!!!!!