You need to get the chip reflashed for your PCM code. That's probably what Diablo was quoting you. The code is on the bottom of the PCM, under your glove box. Just remove the plastic bracket holding it in and there should be a label with a 4 digit code (alpha-alpha-alpha-numeric).
This thread details my control arm experience (you have the same type I do). Not a fun job, nor is it cheap to pay someone to do, as the "right way" requires lowering the subframe for the driver's side. The cheapest I found a set of new control arms for our cars was $250. Also not great news. BAT lists them in their catalogue, but they don't have any nor do they expect any more.
