Yeah that's really low. Explains why it doesn't pick up and go like it should when I give it WOT. $4000 is pricey but not as bad as I would have expected. I wonder if it would be less expensive to replace the heads. I'll have to do some research.
I wish I would have seen your post 5 months ago about the 2003 flat black cobra. I bought it from a dealership in April and now I'm stuck with it! Pretty disappointing, I guess I'll be trying to get rid of it as well.