I have never lost to one single 6. 0 Powerstroke Bombed or stock running just a basic K&N FIPK intake and cone filter, stock exhaust system, Edge/ Attitude on full power, stock 48re. I have had some guys roll up in their 6. 0 or Duramax and ask what I had done, all I have said was Edge/ Attitude and a little six banger. I blow my buddy away and he has a 2004 F350 Crew Long Bed FX4 4x4 with X-Monitor or something like that and a ballbearing turbo. It usually goes him getting me a full truck length out the hole, then I clean him up and am passing him around the 3rd shift and ending around 80-90 mph about 1. 5- 2 trucks lengths ahead +/-