2017-2024 Duramax L5P Drop-In Diesel Fuel System (DIFSL5P1001)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 Duramax from the issues caused by fuel contamination. Without proper fuel filtration, modern diesel injection systems are prone to excessive wear, which can cost THOUSANDS! By removing over 99% of the water from your diesel fuel,

Viscosity typical of 5W-40

Machined from 1

Banks massive 3

The rolled threads after heat treating enhance fatigue resistance

Thanks to the high flow aluminum heads

VGT Turbochargers creating back pressure as well as more boost which can tax the factory valve springs

Universal Bolt-On Rolled Angle Cut Mel's Polished 304 Stainless Exhaust Tip

LMM & LML this will be a "bigger" compressor wheel by the numbers

This bar is refined to work in conjunction with our custom tuned suspensions to throw an exponent on the ride quality

4L exhaust manifold set is crafted with a heavy duty 0

Driven Racing Oil GO 80W-90 Conventional GL-4 Gear Oil (04530)

This makes it perfect for any application whether street