Originally posted by DemonSVT:
The basic X-cal ($350ish) comes with either a stock binary (waste of money) or preset tune (find a good tuner) with some preset changes. It allows you to make changes in most of the key areas and up to a certain percentage based off the original setup. (i.e. yes the original guesstimate needs to be fairly close) Drivability will still likely be rough on highly modified cars. There are a few things you can't change that you'll want to be able to do.
The Pro package about doubles the price (~650ish) but gives you the awesome software that lets you make complete custom tunes yourself. This is a must for anyone that has made any serious changes to their car. $650 is NOTHING compared to the dyno time it will save verses a static mail order chip and the game of dyno tag you need to play with them.
I agree 100%.
2001 Lincoln LS8
1994 Lexus GS300
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