K&N Air Filter Wrap Drycharger RF-1023 Black - RF-1023DK fits_2015`BMW`M4 6L TDI Oval Trumpet Airbox

6L TDI Oval Trumpet Airbox Kit

Boost increase by approximately 6PSI ±

The included black-coated bracket ensures a secure

Modified street discs provide smooth engagement and quiet operation

K&N Air Filter Wrap Drycharger RF-1023 Black - RF-1023DK fits_2015`BMW`M4 6L TDI Oval Trumpet AirboxThe K&N Drycharger is a silicone treated, polyester wrap that is made to cover K&N Air Filters or Personal Watercraft Flame Arrestors. These Drychargers, which are similar to the K&N Prechargers, 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 or flame arrestor is limited. Features & Benefits Water Repellent Treatment Typically