XDP BILLET COOLANT BLOCK-OFF PLATE FOR 2001-2022 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML/L5P 2014-2020 4runner The unique AIRAID snorkel system

The unique AIRAID snorkel system allows intake air to be drawn from up high

We include 9 quarts in this package

Up to 40% exhaust flow increase

4L80E with PRNDL switch

Keeping it at the optimal length to prevent damage to the shocks

XDP BILLET COOLANT BLOCK-OFF PLATE FOR 2001-2022 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML/L5P 2014-2020 4runner The unique AIRAID snorkel systemPut the XDP Billet Coolant Block Off Plate XD344 in your 2001 2022 GM 6. 6L Duramax to permanently eliminate coolant leaks from the rear housing on your Duramax engine. The factory cover uses a gasket and over time the plate can warp, and the gaskets can corrode causing coolant leaks. The XD344 is made from CNC machined billet aluminum and features a built in O ring seal for a leak free installation. Each coolant block off plate comes with a black