FASS Diesel Fuel Flow Enhancer for GM/Chevrolet 2011-2016 Duramax 6.6L 1994 Ford F-350 XL MAHLE Original piston rings are

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Each coolant block-off plate comes with a black anodized finish and is ready to install re-using your factory hardware

FASS Diesel Fuel Flow Enhancer for GM/Chevrolet 2011-2016 Duramax 6.6L 1994 Ford F-350 XL MAHLE Original piston rings areFASS Fuel Systems Dura Max Diesel System 2011 2016 GM Duramax 6. 6L (DMAX7002) Part No: DMAX7002 Duramax diesel engines do not come with a factory System, this is why Duramax owners see such great performance and economic gains after installing an aftermarket diesel fuel System. When the factory CP3 CP4 injection System pulls fuel under a vacuum it can introduce air and vapor into your fuel, which can lead to injector failure. The D Max Flow Enhancer