All Omnipower MAP sensors are built in house and assembled with a custom made 200 PSI NASA/Military approved Aerospace pastic adhesive. Because we build our own sensors we are able to offer a lifetime replacement warranty, if for any reason a problem should arise. We also offer technical support, voltage formulas and calibration info for all sensors we manufacture. Our OEM replacement style sensors offer enthusiasts the easiest possible solution for MAP sensor upgrades while allowing a stock look, but nearly unlimited boost capability. Each sensor comes with a new viton O-ring (for applications that use O-rings). The internal sensor features temperature induced resistance compensation in order to provide the most stable voltage signal to the ECM for consistent fuel and spark rendering over a wide temperature range.