FASS 15-16 GM 2500/3500 Duramax 165gph Titanium Series Fuel Air Separation System TS C12 165G fits_2019-2022`Chevrolet`Silverado 6 Liter A466

6 Liter A466

Exhaust Valve: This axle-back exhaust system incorporates factory style NPP dual mode exhaust valves which use the factory exhaust valve motors (not included)

All Weather

Ram 2500 Big Horn 2017

5-Inch lift in the front and a 1-Inch lift in the rear to provide better off-road performance while also eliminating the *nose-down rake* notorious on stock trucks

FASS 15-16 GM 2500/3500 Duramax 165gph Titanium Series Fuel Air Separation System TS C12 165G fits_2019-2022`Chevrolet`Silverado 6 Liter A466FASS Fuel Systems Diesel System 2015 2016 GM Duramax LML 6. 6L Titanium Signature Series 165GPH (TSC12165G) Part No: TSC12165G A FASS Fuel Systems can be a beneficial upgrade for your GM Duramax LML diesel engine, this is because your Duramax doesn't come with a factory System like other diesels. This requires your CP4 injection System to pull your fuel under a vacuum, adding additional stress to your CP4 System and risk introduce additional air into