hva er detta godt for ?

sjekk detta folks! http://www.finn.no/finn/viewimage?finnkode=6909813&reference=690/981/3_-926753142.jpg&adheading=Green+Twister+%26+Turbotrykkm%E5ler+i+holder%21

 

Snurre inni filteret?

Søkte og fant:

 

Green - Twister Cold Air Intake

* Aluminum Housing acts as a heat shield

* Venture on top of the filter to speed the air up and remove the turbulence

* The dirt and dust is gathered on the inside of the shield for easy cleaning

* Bottom aluminum mount is equipped with velocity stack to ram air into the throttle body

lager ikke denne type filtrer en litt "spesiell" lyd under pådrag da? en slags hvine/suselyd?