Duramax Billet Coolant Block Off Plate 2001-2017 Fleece 1999 Turbo upgrade and tuning highly

Turbo upgrade and tuning highly recommended

we haven't seen any gain under the 1

eliminating any guess work

Fuel pressure adjustments are as simple as turning our clicker style knob and can be locked in place with the adjustable detent

9L Nozzle Set: High performance Stage 3 (100hp) injector nozzle set

Duramax Billet Coolant Block Off Plate 2001-2017 Fleece 1999 Turbo upgrade and tuning highly2001 2016 Duramax Billet Coolant Block Off Plate (Replaces GM P N: 97941204) OE covers are prone to leakage as the gaskets dry out and factory cast covers corrode. Our billet coolant block off plate with an integral O ring is an upgrade for your rear engine cover and will the stop the coolant leaks for good.