Blackboost Conical Twin Flow Synthetic Dry Air filters 5.5 inch x 231mm r231 high-flow synthetic filters

high-flow synthetic filters

and an eye-catching aesthetic

the oversized turbo coupler and inlet duct enhance engine efficiency and performance under all driving conditions

5 inch x 231mm

Blackboost Conical Twin Flow Synthetic Dry Air filters 5.5 inch x 231mm r231 high-flow synthetic filtersBlackBoost Conical Twin Flow Synthetic Dry Air filters After analysing the existing conical filters in the market to pair with our intakes, none of them fit our needs. And so, we decided to make our own proprietary filter that works to our specifications. The filter consists of twin filter elements, the primary filter element on the outside. And the secondary filter element on the top, increases the surface area for the air to pass through. There is a