predator upgrade??

[Screeper]

I need an opinion from those with the experience. I recently did the cool air intake and exhaust upgrade and was mostly happy with the mid range and WOT improvement. What was strange was the "feeling" that there was less lower end torque. Is this due to lack of back pressure? or am I just feeling the greater torque curve?? Will a programmer help or am I wasting my money if I dont want to run on super unleaded. I have read up in past posts about torque management I know a super charger is the cure all but I am concerned about warranty.