Fleece Performance Dosing Injector Fuel Line Disconnect Tool 11-16 GM 6.6L Duramax LML PPE-113060601 check out these hood hinge

check out these hood hinge mounts from ZROADZ

An example would be a FASS Titanium that bypasses the stock fuel filter canister and replaces the stock inlet fitting with a larger 90 degree 3/8" or 1/2" fitting

With most shops being hundreds of dollars for basic diagnostics

Clear Lens

if you run a turbo back exhaust

Fleece Performance Dosing Injector Fuel Line Disconnect Tool 11-16 GM 6.6L Duramax LML PPE-113060601 check out these hood hingeThe right tool for the job not only saves your time, it also saves you from damaging expensive components in your LML engine. This Fleece Performance Dosing Injector Fuel Line Disconnect Tool allows installation and removal of the dosing injector fuel line on 2011 2016 LML Duramax engines a breeze.