For many years, Twin Air Factory Pre-Oiled filters were only available to the top professional race teams. The results were so good that we now offer the same factory treatment to everyone.

NOTE: FOR THESE FILTERS A POWERFLOW KIT IS REQUIRED

We start with an Original Dual-Stage Air Filter and completely submerge it in BIO Liquid Power Filter Oil. After the filter is massaged to ensure all pores are evenly coated with oil, it‰Ûªs placed in a temperature-controlled room to allow the oil to completely cure. You just open the resealable bag and install.

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