just got REVO'D this afternoon....and all i can say is WOW....at first, i did but didnt feel a crazy difference, but after a few hours of driving around, i cant begin to explain how awesome it is. its so much more responsive but at the same time remains smooth. i have an awe boost gauge and before chip, i had a constant boost pressure of 10psi or so with a spike of around 13 or 14. now with the chip the constant boost pressure is 14-15psi with a spike of 20psi. i thought it was alittle high, but the REVO dealer said that was normal. but i would def suggest REVO to anyone, its an amazing program.