I've been looking at turbos for my truck. Most of the information on sizing of the exhaust and compressor housings is geared more toward a HO motor. I don,t want drivibility problems from a oversized turbo. My engine doesnt make much more horsepower stock than 2nd gen 24 valves. But the commen rail turbos seem to be bigger from the aftermaket. I feel like the SO guys are left out. help me make a informed decision thanks.