The performance won't drop very much...and you certainly probably won't even notice :D .

I suppose if the load calculation is off.....but that's usually calculated by exhaust backpressure.

Thanks Cody, I have a couple of programs burned to a chip for him to try. Should know within the week whether its works or not.

After using some stockish ICP and IPR% maps the problem is resolved.

Still a very curious issue, to me.:)