Having trouble figuring out what to do with the air intake. Was going to use the filter housing from an M54, but I need to shorten it by 6-8" for this application and then it'll only fit an M35 air filter, which defeats the whole purpose. The box will flow more but the filter still doesn't.
It is impossible to find a CFM requirement for the 5.9 from Cummins, but I'm seeing reports of around 900 cfm under heavy load, so the original filter isn't enough. Not sure what to do. I may have to shorten the M54 box and fit an aftermarket filter of some kind.