13-18 Cummins 6.7 Custom RPI 4" Intake System
RPI Diesel

13-18 Cummins 6.7 Custom RPI 4" Intake System

Regular price $329.99

This is our full metal 4" Cold Air Intake system for 13-18 Cummins 6.7 

The 4" Intake will run better and make more power than our 5" system would on a truck without the custom tuning to re-scale MAF.

The 4" does not need tuning to rescale MAF.

You will need to leave active air servo motor unplugged

This system uses a 4 Inch T6 Aluminum intake tube for ultimate air flow!

You will have faster spool up, lower egt's, Noticeable Horsepower gain, some Mpg gain, and a turbo whistle that will make people look when your going through town!

Our system adds 25+ Horsepower!

Has a bolt in heat shield that is very well sealed to keep underhood temps away from the Filter, it provides a fresh cold air supply straight to the filter for lower egt's and better performance. It is normal to see 150-250 deg drop in egt's with this system.

We use only the best filters on all our intake systems

These are Custom built to order,  so it takes 10-14 days to ship out, depending on how many orders we have that week.

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