FASS Drop In Series Fuel System

FASS Drop In Series Fuel System2017 2019 GM Duramax L5P 2500HD 3500HD (Crew Cab, Short Bed) 2017 2024 GM Duramax L5P 2500HD 3500HD (Crew Cab, Long Bed) THIS IS NOT A LIFT PUMP! This is an air separation filtration system that utilizes your factory lift pump. The FASS Drop In Series Diesel Fuel System was engineered by FASS to be the most effective filtration solution for the L5P Duramax. Backed by our limited lifetime warranty, the Drop In Series Fuel System protects your L5P

Our 2011-2016 Duramax intake was designed with a secondary inlet

resulting in better performance

and keeps out power-robbing engine heat

The S&B scoop seal has a rubberized seal fitment that compresses into the stock scoop resulting is less airflow loss

2015+ style downpipe

Built-in performance meter measures 0-60

CHOOSE YOUR AIRFLOW

including these diesel injection pump supply lines

The FASS Drop-In Series Diesel Fuel System was engineered by FASS to be the most effective filtration solution for the L5P Duramax

the PDP Grid Heater Delete Kit is a no-nonsense upgrade that does exactly what it’s supposed to—remove a weak link and keep your diesel running strong

6L was engineered to minimize air restriction and flow better than stock

More air equals better performance