I recently bought a chevy 1500 truck with the 5.3L and love it! Has a lot more power than my old truck ('89 gmc 1500) I was wondering how well the 5.3 does when you start adding more horsepower to it if there is any problems I should be aware of? The thing I really want to know is what do people like in this truck a chip or programmer? Which kinds have worked the best for people? Any advice will be very helpful!