hey guys, i haven't been on in a while but i have a question. I have a 98' F150 4x4 with the 5.4 V8. I did the Gotts mod and i have a K&N filter. I have the 40 series flowmaster exhaust, SI/DO (not sure of pipe sizes). I also have the Edge Evo Programmer set on level 2. Sometimes the programmer will just cut off. I will turn the truck off, unplug it, plug it back in, crank the truck and it comes back on. It automatically sets back to level 2 and things carry on like normal. However, I have noticed a little bit of a difference in power and my gas mileage is about 12mpg. What can i do to get/add power back? And is this mpg normal? Oh and i have a 3" BL with 305-70-17 Nitto Terra Grapplers... thanks in advance for the help!

P.S. - if i change my muffler to a Dynomax Race Bullet, will it be a lot louder?

 

How old is your edge? Call edge, dont think it should turn off while driving.