hi all im chris and i finaly got back into a GM as my dd i went from a 04 ext. cab 4x4 dakota with the 4.7 to a 03 yukon xl with 5.3 4x4 and i must say my yukon is much faster lol and gets alot better fuel mileage than the dakota ever did. well the bug has hit me and i knew it wouldnt be long but i plan to start modding the yukon and hopefully i can get more info here than i have over on the tahoe/yukon forums.