A boost guage or 'boost' is a pressure guage that measures the air pressure in the inlet manifold of an internal combustion engine. In motorsports, turbochargers act like air compressors to exert greater force on the engine. A boost allows the driver to monitor this force and ensure that the pressure is ample but not excessive. If you are looking to buy a boost for your vehicle, CMA or Turbosmart might be a starting point, though you will need to do your own investigations as to what will be best for your vehicle.

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