FASS 01-16 GM 2500/3500 Duramax 290gph/8-10psi Titanium Fuel Air Separation System TS C10 290G sierra A pre-installed oil level sight

A pre-installed oil level sight glass allows quick and easy oil inspection

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bugs and twigs to protect the filter for larger life

If you are looking to improve performance

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FASS 01-16 GM 2500/3500 Duramax 290gph/8-10psi Titanium Fuel Air Separation System TS C10 290G sierra A pre-installed oil level sightFASS Diesel Fuel System 2001 2016 GM Duramax 6. 6L Titanium Signature Series 290GPH (TSC10290G) Part No: TSC10290G A FASS Fuel System will be a very beneficial upgrade for your GM Duramax diesel engine, this is because your Duramax doesn't come with a factory System like other diesels. This requires your CP3 CP4 injection System to pull your fuel under a vacuum, adding additional stress to your CP3 CP4 System and risk introduce of additional air vapor