I just completed the PI swap on my car
, using the parts listed in my sig. My question, I haven't had a chance to look at the fuel trim data yet and am wondering, has anyone had any problems running lean on the top end without doing a tune after the swap? I am running the stock ECU with stock programming, no tuner or chip. I have no check engine light on and haven't since the swap.
Also, how much do you think I could pick up ET wise if I get a tuner, I was thinking about one of those SCT tuners, they seem well worth the money.


Also, how much do you think I could pick up ET wise if I get a tuner, I was thinking about one of those SCT tuners, they seem well worth the money.
