Has any one else tried one of these, I installed about 1 month ago , i have been checking fuel milage hand calculated and have seen a 2-3 mpg gain , i also think it may have a little better performance , seems smoother.
I have a 21 with 43 k on it , no problems, supposed to go in on the July 12 for the high pressure fuel pump replacement , i have gotten 30.1 mpg hand calculated , hope the recall doesn't effect it , i hope i can be an asset to the forum