so i got this bad smell in my car and cant get it out. i have tried to frabreeze it, air out, nothin really. i am just wondering whats the best way to get a smell out. i have seat covers and i think i am going to take those and wash them, also how often do you need to replace the incabin mircofilter. the smell i think iis from my bball stuff. any help would be good. thanks