NEW GENUINE AEM 30-4110 WIDEBANDIN STOCK! SHIPS SAME DAY VIA USPS PRIORITY MAILDESIGNED, TESTED, AND MANUFACTURED IN THE USA!SEALED IN FACTORY AEM PACKAGE AEM PART # 30-4110ALL ORDERS SHIP SAME DAY IF PLACED BY 5PM CTEMAIL OR CALL M-F 9:00AM - 5:30PM CT WITH TECH OR ORDER QUESTIONS EXPRESS OVERNIGHT AVAILABLE WE SHIP WORLDWIDE! DESIGN FEATURES: If you're looking at an AEM Wideband you have likely modified your car and need to keep an eye on air-fuel ratios. This AEM UEGO gauge does exactly that, and does it extremely well. A wideband UEGO sensor controller accurately monitors Air/Fuel ratios (AFR) during the tuning process to prevent a lean fuel mixture, which could lead to engine damage. Air/fuel readings are very consistent and the AEM wideband gauges have an excellent reputation f.