Nitrous Oxide 0.500 Black Billet Square Bore Perimeter Injection Spacer Plate These housings can be flipped

These housings can be flipped 180 degrees for either a left or right outlet location

and sludge

and use lightening holes in all rod throws

The copper gaskets help even out the flow between the head and header flange to minimize warping

Size Notes: Flange to Inside - 14 1/2" Flange to Outside - 20" Flange to End of Pipe - 38"

Nitrous Oxide 0.500 Black Billet Square Bore Perimeter Injection Spacer Plate These housings can be flippedThese Speedmaster perimeter plates employ multiple injection points to ensure that a perfectly atomized, cylinder to cylinder balanced blend of fuel and nitrous reaches your engine. The technology eliminates nitrous delivery imbalance, the major drawback with spray bar type nitrous systems. The plates are manufactured from aluminum and are anodized for protection.