Airbox

[01cummins6]

Has anyone ever done the stock airbox mod

[dripley]

Not even sure what that is. I have a BHAF on mine.

[trreed]

Is that were you cut holes in the sides of the bottom part of the air box?  

[JAG1]

If your are going to keep using the oem air box its good to shave the lip on the lower box just a little. It helps the upper section seal better/ tighter to the stock filter rubber seal.

[sooxies]

2 hours ago, trreed said:

Is that were you cut holes in the sides of the bottom part of the air box?  

People would do something similar in the 6.5TD community.  I never did it when I had mine.  They called it "Swiss cheesing" the air box.    

[Texas CTD]

1st gen guys do it.

 

Never really heard of 2nd gen guys do it.

[Mopar1973Man]

I would rather install a BHAF that even attempt to make the stock box work.