I have a 1999 cummins with 4 inch down pipe and 5 inch the rest of the way, has rebuilt trans with billet torque converter and flex plate and heavy duty clutches, k&n air filter, a 70hp super chip, a fass fuel system (but) i have a stock "turbo" I bought a set of 140hp injectors and would like to know if I can use them with the stock turbo. I do have gauges for fuel pressure, boost, and egt.

 

My Self I would ditch the super chip, but yes you will be able to run the 140's but I would drive by your EGT Gauge. Then get a turbo upgrade cause your gonna be running hot.

 

why not post this in the 2nd gen. forum ?

 

Ya you will be fine I ran 150s with my stock HX for almost a year and I was fine. But like killstroker said ditch the superchips and go with a edge or quad and watch those egts ur gunna be runnin HOT and smokin like a train