Active Performance 90 degree throttle body adapter is 145mm high has a bore size of 87mm so will accept up to 85mm throttle body, has o-ringed base for boosted application. These are cast and machined in Australia and are cast from the original Inner Active range of manifolds, efi hats, injector cups and various EFI products.
There is an area at the base where fittings can be added, the sand cast housing can be drilled, tapped and welded. It is not a cheap brittle asian casting.
The Active EFI adapter is machined for an O ring which is ideal for forced induction application. The oring can be replaced with a paper gasket.