Precision Turbo carries a full line of accessories for both Big Stuff 3 Engine Management Systems and AEM Engine Management Systems. Everything from air inlet temp sensors to coolant temp sensors, to throttle position sensors and MAP sensors; we have you covered! In addition, we offer both universal and application specific engine wiring harnesses, adapter harnesses, and fuel injector harnesses. Don't see what you need? Please contact one of our friendly Sales/Technical Representatives and they will be able to assist you with all your Engine Management accessory needs.