Matty72

I have a 2006 fx4 5.4 Ltr. It has a Gibson exhaust that comes out in front of rear tire and a k&n intake. When I put the gas to the floor it Boggs down bad from 3000 Rpms to 3500. In order to reach high Rpms I have to eas into it. Also sputters on highway when I cruise at low rpm. Any ideas?

DirtRoadKid

have u done the baisc tune ups. change plugs and stuff? it helped my brother with his 05 fx4 alot with that. he had the Exact same problem j described