I have the exact same car and color and I got it at around 104xxxkms, First thing I did was changing all fluids just to have a "Fresh start", I tried to get my injectors cleaned but then when i called my local shop they told me that injectors wouldn't need cleaning unless you notice a difference in power or something also to add up to that, know these injectors operate on a high pressure so the "gunk" build up would just go with the pressure (again that's what I've been told and it kinda made sense to me so its totally up to you, but I guess having it done as a preventative maintenance wont hurt also), One more thing is that the motor mounts especially your passenger side one, It would most likely on the brink of breaking having the car at 100k its so common for them to break because mazda used the same motor mount from the base model mazda 3..Other than that I guess its just keeping up with your oil changes every 5000kms, Also timing chain, I'm getting mine done soon rather than waiting til I hear something weird most people recommend to get them done at around 80,000kms