Hi guys I am needing some parts to update my Mazda 3. It has 185,000 miles and needless to say a lot of parts are starting to show their age. The fuel injectors and coil packs are especially hard to pick as you can find fuel injectors for anywhere from $40 to $50 for a set of 4 to over $100.00 per injector. Does anyone have any suggestions as to a good quality brand for the injectors?

Thank you in advance for you time and response
N. Bryan McConnell