Quick question about the AEM Wideband...Is it possible to do away with the factory 02 sensor and install the Wideband sensor in its place? Or does the wideband work in conjuction w/ the factory 02(meaning i'd have to use both?) I know by removing the stock 02 sensor its gonna throw a CEL immediatley...Also how far down in the exhaust stream does the wideband sensor need to be mounted @? Wideband gurus plz chime in, thanks!