Surfar man med Chrome kan man högerklicka och välja sök på Google efter bilden och jag gjorde det hamnade jag på ett forum där jag hittade följande text åt dig:
as for the induction system, the filter stays clean as new, doesn't rub on anything, and seems to give it an extra ooommph from the 'seat of the pant' dyno. the intake boot is from a late model digifant VW GTI 16v. it's a tight fit but well worth the effort. very thick and sturdy. not to mention, it has the cone in the center to help maintane high cfms. i used an old trick to get it on there. it was about 3-4mm too small and it's very sturdy and not to flexible. so i boiled it for 10 mins, snag it with some leather gloves, ran outside, stuck my hand through the opening, pushed it on and pulled it towards myself until it slid on. no issues at all.