Hey there I have a 2005 F150 xlt 5.4L v8 with about 80k miles on it and its still generally running strong. I have added a flowmaster exhaust, K&N CAI and a flashpaqs tuner. The problem im having is when driving uphill with 3 people or more in the truck in seems to be bogging way down and even down shifts and runs around 3500 rpm until the top of the hill. It doesnt do this though when its just me in the truck. Any ideas to what may be wrong. Thank you for the help.