My brother went to AD's in his truck, he dropped from 18-19 down to the 15mpg range, threw CEL's like its going out of style (tuned for AD's even), now, with a Banks single file, he doesn't set the CEL as much, and it gave it a little more umph.
Starts like a freightrain and his fuel and oil hate him, but other than that its alright. After all I've dealt with regarding his truck, I would never recommend it. Some guys do alright with em, but at the end of the day its a ghetto way to not make that much more power.
We both wish we would have known that to start with.
I'd go with 1's from the get go too if I had it to do all over again...But if I had a known good running set of AD's and wanted some decent power gains without breaking the bank I'd throw em in... even a 17* pump won't make the CEl go away completely though...They are oil hungry SOB's
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