We also use a 5 inlet 12" long filter
Wish I could try a bigger filter to bad it wouldnt fit though
Oh, it a 4" intake Afe cone shaped about 8 " long... . havent been able to get up to full boost yet as we are doing some testing with a slipping clutch to boot... . And the darn thing is tucked under the front bumperso a big one will prolly not work... ... ... ... ... .