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sorry you are having a problem. Boost gauges are alway installed After the turb or blower. Now you will need to find a pipe plug or a plug of some kind in the intake manifold or plenum after the turbo (blower) and the engine. You may need to drill a hole and tap it to install a fitting to attach the gauge, you will need a 1/8 pipe tap and the proper drill bit. You should have a vacuum to keep the metal shaving from getting into the engine while drilling and tapping. If you need more information please contact me. Jim