Group Buy for SCT Tuners?!?!? Why yes, I think we can do that!
#739
The 93 is 15 - 18 horses to the wheels for the 5.0 and 30-35 torque, the 87 is 12-15 rwhp and 25-28 torque typically. Biggest difference between the two though is the shifting patterns though. I usually tell folks to try each tune for a few days and see what you like best. Some prefer the 87, some like the 91 or 93 better.