hey people took off my air filter box cover yesterday(round filter) and I was driving around a bit! that makes a horny sound;-) but between air filter and air filter box are about 2 cm round space! that makes the air no longer 100% filtered! can I put in foam around there so that it pulls again 100% through the air filter or would you rather advise me from it? doesn’t want to scrape my motor;-) thank you already for your answers;-) mfg Ghost