I thought Shannen meant you could get the little chip on the memcal from the dealer.. I guess I missed the apple or was it an orange. Though with the number of memcals I have from the 'spare' ECM's I think its worth the time trying to get the six cyl version to work in the eight as a recent post about pin 56 of the memcal Thanks for the correction, though its not what I wanted to hear;-) Max