Imported my98 JDM classic wrx couple of years ago, havent replaced the panel filter that is already on there (which I would guess is a green filter, since the colour of the filter is green!).

Do people have any suggestions as to what would be an ideal replacement for it? I was looking at TSL's Group N Green (but its actually blue in colour) filter.

Would this improve the running of the car at all? not expecting much on performance, but I would assume there'll be some difference?

Cheers pips!

 

anyone?

 

If it is a green filter mate you can buy a cleaning kit for £13 from Halfords etc..

Lee

 

If you imported the car with the filter already in place, and it's green coloured, it's probably an HKS filter.
So just give it a clean.