d1970 said AEM Electronics Wideband Air/Fuel UEGO Gauge Kits 30-4110 Easy to install Summit Racing AEM Electronics Wideband Air/Fuel UEGO Gauge Kits 30-4110 $219.99 here is a ebay listing for it at $169.99. Summit will match the price. AEM 30-4110 DIGITAL WIDEBAND UEGO CONTROLLER AIR FUEL RATIO KIT NEW BOSCH 4.9LSU | eBay Click to expand...