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Do not flash through the CSP5 Pass through connector
FASS Fuel Systems Diesel System 165GPH GM 6
2015-2016 Duramax 165GPH System Features:
RPM and dozens more
the Drop-In Series Fuel System protects your L5P Duramax from the issues caused by fuel contamination
FASS Titanium Signature Series Diesel Fuel System 100GPH GM Duramax 6.6L 2011-2014 Diesel Governor Spring Do not flash through theFASS Fuel Systems Diesel System 2011 2014 GM Duramax LML 6. 6L Titanium Signature Series 100GPH (TSC11100G) Part No: TSC11100G 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 CP3 injection System to pull your fuel under a vacuum, adding additional stress to your CP3 System and risk introduce additional air into