The K&N Drycharger is a silicone treated, polyester wrap that is made to cover K&N Air Filters. These Drychargers, contain uniform micron sized openings that allow high air flow. Yet, due to the Drychargers silicone treated polyester wrap, the amount of water that reaches the air filter is limited.
ESS Tuning Filter sock for E9x M3 VT2
£30.99 (£25.83 excl. VAT)