i was pricing replacement parts for a tune up on my new se-r. I went to Auto Zone and only ended up getting bosch platinum +4's because they did not have the other parts in a decent name brand. I do not trust autozone brand parts. So when i got home i swapped the plugs and found ngk's in there. Does anybody know if those plugs are oem? Also i called the dealership for a cap/rotor , wires , and an oxygen sensor and they said the total would be $145 is this high or should i just pay a premium for oem parts?