JOECUMNS

Installed the air box mod with 4 inch adaptor to bottom of air box with 4 inch plastic tubing, cut it off flush at the bottom, now air has a direct flow to box so it's got to be cooler and get more air like I've read on here but it did cut out a little of my whistle. It still whistles a lot but a little less now so I guess that is better ?? Must mean it's getting more usable air and maybe not having to pull it in. What do ya'll think ??