AEM Water/Meth Injection: Recirculation Pump (200PS), 30-3015AEM's recirculation style pump offers improved performance, reliability and a much smoother, quieter operation when compared to older switched style pumps. With the use of a new internal bypass design, AEM's upgraded pump eliminates erratic on and off switching pulsing and ensures consistent fluid delivery for optimum performance. With durability and reliability in mind, AEM has designed the pump with a Santoprene diaphragm and EPDM seals to withstand