You know alot more then me and that's a great price..and any recommendation on air filters. Thank you for the help. I really just want to get all the mechanical stuff done for a great ride and look. And the inside I will work on as time goes by. But I got to have my music and bass. I currently have 2 12 subs, Amp. Tweeters, and door speakers and 6x9 in my legend. Thanks for all the help.