My Mazda dealer quoted me $350 + tax to replace the spark plugs on my 2014 Mazda3 2.0L. I have read that it is good practice to stick with the OEM spark plugs especially with the skyactiv engine. What is/are the part number(s) for the OEM plugs? Anyone have a Canadian retailer for them? $350 seems like a lot, should I just source the plugs online and do the work myself? I would think it's a pretty straight-forward job. For reference I have installed an air intake and throttle controller on the car but that's it.
Adam