HSP Diesel L5P 2020-2021 Upper Coolant Tube Raw red 20 Watts (pair)

20 Watts (pair)

This prevents the reintroduction of air and vapor back into the fuel and prevents eddy currents from forming within the corner of a 90-degree sharp angle

Depending on which mounting point you select

R8415373AA

Stage 2 - Street/Strip Provides very positive shifts for high performance street use or for competitive events

HSP Diesel L5P 2020-2021 Upper Coolant Tube Raw red 20 Watts (pair)The 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