BTW, overkill PCM's rock...in terms of a pretuned PCM.
Basically, you get your new PCM in, follow the instructions as per removing the old PCM/Installing the new PCM.
Then you'll drive around for a bit, and take the car to a dealership..and tell them you need a CASE learn performed. (it basically helps the computer figure out the tolerances from the Crankshaft position sensor)
Just tell them DO NOT FLASH THE PCM, otherwise, you'll have another stock PCM.
?????
Profit
So the case learn has to be done no matter what?
1998 GS with Open cone, PLOG, ZZP Catless DP, tune & Intense MPS 3.6. Pulls good enough to make the woman smack me and call me a D!*k.