I'm looking for a wideband kit for my mpvi3 and wanted some feed back. What should I make sure I have and are they any top choice brands I should be looking into? What wideband 02 sensor kit do you have? I have a 2009 tahoe ltz 5.3 ly5 that I'm trying to tune. I need the wideband kit to read my AFR. Can't do anything without it