Well that kind of kills the "plug and play" idea though, that you can just "unhook" the box when you take it in for service, now you've got a BOV and wastegate solenoid to uninstall to bring it back to stock...
I think you're misunderstanding me maybe. The BOV solenoid is the MAC BOV, it's not an actual blow off valve, small component that they wouldn't know isn't stock even if they looked at it. The boost solenoid is basically the same deal, looks stock and would really have to investigate it to notice a difference.
Unless there's a specific problem with either of those, they wouldn't even be looking for/at them. Also keep in mind even with modifications, they have to prove that the modification caused the failure. Taking it in for an oil change I imagine they wouldn't even notice either of those components. Major service/warranty work I can't say for sure.
To me, it's still very much a plug and play solution since it doesn't map the ECU. The other supporting mods aren't necessary for it to WORK, but for it to really perform like a tune, to me, you need those two parts replaced.
Also keep in mind you don't have to mod your car at all. Pretty peppy in it's stock form!
Edited for clarity.