Sad news, the dealership is denying warranty as of this afternoon for the following reasons...
1) Air inlet tube clamps are other than Mazda OEM
2) Air box hold down missing
3) Exhaust nut on manifold to turbo missing
4) Clamp for factory bypass valve is other than Mazda OEM
5) Aftermarket boost gauge installed by previous owner, was not hooked and functioning
The car had no driveability issues or signs of anything needing to be repaired or replaced when I was having my mechanic change the oil and due a brief visual inspection. I have started the appeal process for warranty coverage through Mazda North America becuase none of these things indicate a direct correlation to engine failure, but, according to the dealership the show "signs of modification or intent to alter the vehicle's stock equiptment". I am sick to my stomach over this, becuase the engine has been replaced at this dealership before I took ownership and the car is still under 60/60k powertrain warranty.