Skunk2 is proud to offer our very own 4 BAR MAP Sensor for the 2012-2015 Civic Si, 2006-2009 S2000 and 2013-2015 ILX for all your boosted K24Z7 and F22C engine needs! Features : Required for Boosted Applications Reads up to 43. 5 PSI of Boost Requires Tuning Notes : A 1 BAR MAP sensor reports barometric pressure times one, which is approximately 14. 7 psi or 30in/Hg (inches of mercury). 2 BAR or 3 BAR simply mean two or three times above barometric pressure. The sensor will measure each direction, vacuum or pressure. For reference: 1 BAR is for a normally aspirated engine 2 BAR will handle a forced induction up to 14. 5 psi of boost 3 BAR will handle a forced induction up to 29. 0 psi of boost A vehicle's computer is calibrated to function at a specific level as programmed by the design engineer. A 2 or 3 BAR MAP sensor placed in a system designed for a 1 BAR sensor will not function correctly; in fact the system will run very rich because of the low return voltage signal. A computer that is programmable is a must for any tuner attempting to boost their engine's output with the addition of a turbocharger and a 2 or 3 BAR MAP sensor. Compatible with BRZ/ FRS/ FT86 and possibly many others