I was the first to get an Xcal2 from Brenspeed. I personally picked up 10HP and 5TQ, with better driveability. You get so much with the Xcal2, it's hard NOT to go with it. Turns your lower O2 sensors off, so no CEL's, it's a code scanner for any CEL you DO come across. You get three tunes. Overall, it's an awesome tool, and well worth the money. I don't know of many people that have done many before and after dyno'ing with the Xcal2, so mine shouldn't be taken as gospil. I hope this is your last of 15 posts on what tuning software to buy! Just buy the Xcal2!!!!!! You can always go BACK and get the PRP.
Mark
