I've had my chevy silverado for a while now and the only thing i've had time to do been in the military and all is a 7" procomp lift and flowmaster... i was looking foward to putting on some headers maybe a chip and cold air intake but ive heard bad things about this upgrades and im just not sure what works for chevy silverado and what doesnt can anyone with me some advise? i would really like to get more power and mid range power. the flowmaster helped out alot of the line but at top speeds its hard to pass people and i usually have to floor it. im running 35X12.50X17 BF Goodrinch KM2. KM1 last me a little over 3 years and i hope KM2 will be just as good.