Oh the 3.8 petrol is gutless. I always had v8's, the last one was a 350 in a small Chevy truck, so coming from that to a 6 was a real hard thing to get used to. I think you have to just accept the 3.8 for what it is & not expect to much out of the Superchip,that way if you get more out of the chip than expected it's a bonus