FASS No-Drop Series PLUS 220GPH Fuel System for 2020-2023 GM/Chevy Duramax 6.6L (700-900hp) Replacement Taillights 2011-2015 GM This is a great alternative

This is a great alternative to having to send in a used core

HP Tuners or other transmission pressure tuning

The installation and operation of this product requires aftermarket tuning and modifications

If you have an aftermarket fuel filtration system such as an Air Dog or a FASS

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FASS No-Drop Series PLUS 220GPH Fuel System for 2020-2023 GM/Chevy Duramax 6.6L (700-900hp) Replacement Taillights 2011-2015 GM This is a great alternativeFASS No Drop Plus Series Diesel Fuel System for 2020 2023 GM Chevy Duramax 6. 6L (700 900hp) Includes TSPC15250F220G (250F 220gph 70 75psi) Fuel System + SK5501 FASS Diesel Fuel Sump Kit Please Note: This Fuel System REQUIRES aftermarket tuning to be compatible. Fits: Fits 2020 2023 GM Chevy Duramax 6. 6L Installing a Titanium Signature Series Plus Fuel System has never been easier, or more affordable. Designed to simplify installation, No Drop Plus