TFI 3991C 25mm Crankcase Breather Filter – Cleanable, Black, Performance Part

This little TFI breather filter (part 3991C) is a simple upgrade for your engine's crankcase ventilation.

It's 25mm (about 1 inch) and designed to be cleanable—so you can reuse it instead of tossing it.

Just wash it out and put it back.

Black color, blends in under the hood.

It's a performance part, so if you're running a custom setup or just want to keep crap out of your engine while letting it breathe, this is a solid choice.

Made by TFI, UPC 9323357081951.