For what it's worth, they've changed their stance on modifications, to a point. Before, it was something like, if we can tell you've played with the car, we can deny everything. Now, it's somewhat along the lines of, sure, you've got a CAI, but your trunk leaking is probably not related to it, so they'll cover the replacement without much of a question. Now if you blow the transmission, and they see rubber all along the side, CAI, and Longtubes, they may have sufficient evidence for their denial, as its early demise might not be a manufacturing issue, but your misuse and perhaps misconfig/mistune.