Cooper - WZ145A Oil Filter for RB20 / RB25 / RB26 / RB30

Cheap isn't always bad and this filter is one of our best kept secrets. We have been using these filters for the better part of 15 years now with great success. We have tested this back to back on a dyno against other leading manufacturers, the results were amazing.

In terms of pure oil pressure, nothing outmatched this filter. In terms of filtration, it filters well enough to be a OEM replacement so that speaks volumes, however we still recommend using quality oils and servicing regularly just like most skyline owners do anyway.

We have this filter on skylines making well over 1500hp without any problems and as stated above, it is a proven product that we have not encountered problems with despite being fitted to thousands of cars over the years.