I got an informative PM the other day from another member who test drove my car a few weeks before I bought it.
His opinion is that my car might have had either the Shark injector or some other kind of software update as he had driven several different ZHPs over the last few months and this one stood out as noticeably faster than the others.
So my question is this-- is there any way to determine if some type of upgrade like Shark has been done?