6.7L Cummins Forum

I cut a 4 1/4" hole in the bottom of a stock air box that I bought at the wreckers, then installed a 4" id flange and gutted the intake tube and running either a K&N or aFe drop in filter. I have been running this setup all summer pulling our travel trailer. At some point I will rig up a pipe and snorkel head to the flange to draw air from under the truck, like the setup sold by PSM Diesel.
The set up as it is gives more throttle response for passing and you can hear the turbo sing. The turbo is louder using the aFe. Using the K&N, it can still be heard around town but is less intrusive when pulling on the highway at 100 to 130 kph.It does not seem to draw any more junk into the box than the stock setup did.

Things don't have to cost big bucks to be functional...Good Job

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7.5 3500QC 6.7CTD 68RFE Build date June 2007
Superchips tuner 3808, Boost/EGT Laser Gauge, Airaid cold intake

True, but it sure is exciting when that big brown truck pulls up in the driveway.

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2007.5 Dodge Ram 3500 HD,QC, 6.7L Cummins, 6speed Auto, 4X4, Bighorn Edition.
Click for installs: Carr Steps PML Diff Cover Edge Juice with Attitude Volant Intake Hankook ATM RF10