my advise is industrial injections set but i can say from experience that if you buy anthing from bd that you will be unhappy i have a set of bd twins and i will sell them for 3150. but i can tell you that bd is the worst company in the world to deal with in my experience. i went through multiple items that continue to keep breaking and 3 transmissions from them. the turbos have about 7k on them and have been inspected by pdi. but if you got the 5k get industrial injectons and forget about it. sorry to rant but bd has cost me months of time down on my truck and more headaches than i can count. what a bad company with unreliable products, heck i never got more than 2k out of one of the three trannies i had from them. now have a suncoast with no problems from the start.