If you need to run more than 1 bar of boost, you need a manifold air pressure sensor with more range. Our 3-bar map sensor allows you to run up to 29 PSI of boost. This is a genuine GM sensor.

Beware of ‘imported’ units sold as genuine. These are notorious for two problems: The ‘zero’ manifold vacuum setting being different unit to unit. Also, the linear output drifts over time. (See the image for detecting counterfeit sensors)

• Genuine GM
• 3-Bar