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Each FASS Drop-In Series System has ports for electric heaters which help aid in cold weather starts and keep fuel from gelling while driving during extremely cold temperatures
it quickly cuts through layers of dulling oxides to restore original finish while adding tarnish protection
they are necessary in today's diesel environment in order to create harmony between reduced emissions and higher power levels
7L 3rd Gen Dual Zone Blend Door Set (DT-4DR-Y)
a built-in water separation filter and FASS Fuel Systems patented air/vapor removal process
2013-2018 Cummins 6.7L Dirty 4" Cat & DPF Delete Pipe No Muffler (DDC-3D13) Piston Each FASS Drop-In Series System2013 2018 Cummins 6. 7L Dirty 4" Cat & DPF Delete Pipe No Muffler (DDC 3D13) The DDC 3D13 4" DPF & CAT Delete Kit by Dirty Diesel Customs is designed for 2013 2018 6. 7L Cummins trucks, delivering high performance, high flow exhaust upgrades. This bolt on kit boosts torque, improves fuel mileage, reduces EGTs, and enhances your trucks exhaust sound. Upgrade your stock components for maximum diesel performance, reliability, and flow. Why Shop Dirty