I want to add a set of injectors but dont want to kill anything. Do they help or hurt gas mileage? What brand is best? How many horses with my setup without harming anything, turbo, tranny, exc.... I was thinking like 80 or 100 hp would be nice. If they say 80hp injectors do they really add 80 horses??

 

Im curious too...

 

Generally most (Good) injectors will help mileage (when you are not hauling on it). Mach and DDP are good injectors that I know of, could be a couple more though. The HP rating you are looking for would probably be ok in your truck for awhile. But the more and more you beat on it, the more it is going to show in the tranny. Turbo should be fine though, even with your chip.

I run DDP 110's in my truck, have been since oh back in November. My tranny is just slowly starting to die (almost turning over 300,000km and towed for years).