VMP '20+ GT500 16 an billet high-flow water manifold - internal 1" version Now with boost reference port! Great for boost gauges, fuel systems, and other upgrades that require a reference.This version is designed for 1" internal floating transfer tubes on the VMP-SUC036 81mm race intercoolers. Also fits other intercooler cores that use true 1.000" ID in/out machined bungs on the intercooler core such as Whipple. Externally this manifold comes with 16an x 3/4" barb fittings and may be upgraded to 16an x 1" barb fittings. This water manifold was designed to get rid of the ugly, cast water manifold with floating tubes and replace it with a larger inner diameter, anodized, AN style water manifold. This will help with cooling efficiency and flow while making your 2020 GT500 look nicer under the hood. This totally modular design allows you to upgrade to larger fitting quick and easy as your build becomes more in depth and your cooling needs increase. This will not only work with your stock intercooler, but can be outfitted to work with one of VMP's upgraded intercoolers for the new Predator engine. Includes: VMP Billet Aluminum and black anodized water manifold with 16an fittings 16an x 3/4" barb fittings to connect to your stock intercooler hosesAll required O-rings and bolts VMP's water manifold accepts standard 16an fittings from companies such as Fragola. For a full 1" hose conversion use Fragola -16 AN x 1" barb straight push lock PN 200116-BL with any 1" ID rubber hose such as Gates 28413 safety stripe or Gates 28449 green stripe (thicker).