If you are the type who is quite particular about repairs to your car, replacement parts would normally leave you with two options: Japan or Taiwan. If you are a frequent visitor of car part shops, these will be the choices for certain parts that will be offered to you. Of the two, Taiwan parts are normally the cheaper one since they are considered as imitation parts that have a lesser product lifecycle compared to Japan or original parts.
Japan parts often mean durability. They are normally the parts that are close to what the exact specs of your car needs. However, they are costly and unless you are willing to use second-hand parts that will still cost more or luckily the same as a Taiwan part, the price for Japan parts may knock you off your feet. Brand new Japan parts are the safest route to maintain the same level of quality that your car has. There are people who however turn to Taiwan parts due to prices and can do for a certain time, perhaps half of the actual durability life of a part.
Mechanical parts of vehicles are quite sensitive. Take for example engine support bushings. Comparing the Taiwan made ones to the original ones can be seen in a couple of months. Engine support bushings normally last for 3 to 5 years, depending on the use of a vehicle. Taiwan made engine support bushings normally last for 6 months to a year. That is how much difference you can expect between the two.
While everything should not be entirely blamed on the part manufacturers, you have to put into consideration the wear and tear and road conditions your car drives on. In this case, Philippine roads are known to be unstable and that is why we often find ourselves needing repairs especially if your car chassis are not that solidly built like Mitsubishi vehicles that have pricey replacements parts as well.