HSP Diesel L5P 2020-2021 Upper Coolant Tube M&M Orange GM Colorado/Canyon " These are the best quality

These are the best quality injectors you can get for your LB7

7 PowerStroke XR1 Turbo Kit (64

Comes with the latest revisions

Emission Note:

Note: Some engine blocks may require larger o rings due to block hole size variations

HSP Diesel L5P 2020-2021 Upper Coolant Tube M&M Orange GM Colorado/Canyon " These are the best qualityThe 637 2 HSP is best known as the HSP Upper Coolant Tube for the 2020 2021 L5P Duramax equipped Chevrolet and GMC trucks. The Upper Coolant Tube Why would you need the HSP Upper Coolant Tube for the 2020 2021 L5P Trucks? The factory upper coolant tube is a piece that just looks out of place. While the factory part works alright, it can fail due to the construction and the overall look just does not do the L5P engine the justice that it deserves. What