Skunk2 Universal Air Stack Kit with FilterThe Skunk2 Universal High Velocity Intake Kit reduces heat soak and maximizes airflow and velocity for any induction system. The kit utilizes a massive 6. 8 in. diameter high flow low restriction air filter that features a unique double cone design where the inverted inner filter cone not only increases the filter surface area and air flow capacity, it also helps reduce turbulence inside the filter and guide the incoming air to achieve higher flow