Caldwell
Senior Member
- Joined
- May 11, 2012
- Posts
- 1,035
- Reaction score
- 182
- Location
- Philadelphia
- Ram Year
- 2013
- Engine
- Hemi 5.7L
Hey Fella's
Im sure that I am not the first to do this, but I thought I would give it a try to see if there is any difference in AIT's / MPG gains at all. Plus it just gave me a reason to do something to my truck, and kill some time while working at the firehouse lol. I really don't want to spend 300+ $$$ on a S&B / Vararam ( not bashing ) just feel my money could be spent on other worth while mods to me. So for a grand total of 14$ spent I took a crack at it.
*** Pictures Below are not my exact work, this is what I used as the guide.
I had a K&N panel filter in my 2012, and swapped it into my 2013. I drilled a 3 inch hole into the bottom of the OEM Air Box ( Front Corner ). Went to the Hardware Store and bought some Flexible Aluminum Dryer Vent Ducting ( 4'' x 8' ).

Then I ran the ducting straight down along the inner fender molding ( I did trim some of the inner molding, not required just my preference. )

Then I routed the ducting to right behind were my tow hook would be located. Since I don't have any, I was ok and cut a section of the plastic grille thing and made it look similar to this.

I placed a dry rag over the hole in the air box, and used a leaf blower ( 3 feet away ) to see if I could get air moving in the box. I was able to get movement of the rag within the air box. Im sure the real world driving will be a little different, but it was worth the try.
Im taking a 200 mile round trip tonight / tomorrow so ill report if I see anykind of mpg gains ( if any ). So far my best trip in my 12' Express was 18.4 MPG. If I can break the 19 mark ill be happy lol.
I did disconnect the battery for 5 minutes to reset the pcm.
Im sure that I am not the first to do this, but I thought I would give it a try to see if there is any difference in AIT's / MPG gains at all. Plus it just gave me a reason to do something to my truck, and kill some time while working at the firehouse lol. I really don't want to spend 300+ $$$ on a S&B / Vararam ( not bashing ) just feel my money could be spent on other worth while mods to me. So for a grand total of 14$ spent I took a crack at it.
*** Pictures Below are not my exact work, this is what I used as the guide.
I had a K&N panel filter in my 2012, and swapped it into my 2013. I drilled a 3 inch hole into the bottom of the OEM Air Box ( Front Corner ). Went to the Hardware Store and bought some Flexible Aluminum Dryer Vent Ducting ( 4'' x 8' ).

Then I ran the ducting straight down along the inner fender molding ( I did trim some of the inner molding, not required just my preference. )

Then I routed the ducting to right behind were my tow hook would be located. Since I don't have any, I was ok and cut a section of the plastic grille thing and made it look similar to this.

I placed a dry rag over the hole in the air box, and used a leaf blower ( 3 feet away ) to see if I could get air moving in the box. I was able to get movement of the rag within the air box. Im sure the real world driving will be a little different, but it was worth the try.
Im taking a 200 mile round trip tonight / tomorrow so ill report if I see anykind of mpg gains ( if any ). So far my best trip in my 12' Express was 18.4 MPG. If I can break the 19 mark ill be happy lol.
I did disconnect the battery for 5 minutes to reset the pcm.
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