I know it's probably been discussed before, but I'm looking for ways to tune up my truck. I have a 2005 F-150 4.6L 2V and I love it. The only thing is that it definitely lacks power and the gas mileage is a little low (about 13 combined city and highway, but I did put on 18" all terrain tires which brought it down a good 1 mpg). I'm going to be ordering a Volant Powercore Cold Air Intake soon which is supposed to boost it up by 18 HP from the original 231 HP, and hopefully help the acceleration. I also plan on eventually getting a Flowmaster American Thunder true dual exhaust system to make it sound better and hopefully increase the performance a bit. I don't tow much so I'm not worried too much about increasing the torque, I just want more HP, mpg, and better throttle response because let's face it the 4.6L lags compared to the 5.4L. Any suggestions would help (I'm not planning on super/turbo charging it as its a little too pricey) also any good programming chips to help the engine breath better?