Usually u have to go buy that mate. It comes with Guage, globe with wires and then the clear vacuum line. To T it into your system, u will need to buy a T piece, or on the 1j's , just plug the bastard into the outlet near the back of the intake.
yeah some one had previously had a boost guage in there but the T connection is different n all so ill go pick one up then bastards at autometer know how to make the extra money on the small bits n pieces. thanks ne ways where abts on the intake on the 1jz? coz thats the engine i got