Quote Originally Posted by 12vdc View Post
If TS is after longevity of engine and saving cost then aftermarket cheap good quality filters are everywhere.

The sakura air filter cost P200 or less, for regular use i'd replace them twice or thrice a year.

Same with oils and other filters, get the cheapest but good quality, even if you frequently replace them(2-3x more) its still cheaper than casa parts. Replace them frequently and your car will last loong.
This is what I do too. I change the air filter (replacement only) with every oil change interval or 5,000 kms.