the wideband(from which i read from the internet) is way to change and moniter the a/f and rpm... it comes with a a/f gauge with the o2sensor... it connects to the e-manage

i just bought a preprogram emange from MWR..... My friends is going to install it for me.... Im also going to get my car dyno pretty soon.... my ? is once its connected is it ready to go or do i need to get it tweak a little bit more... if i dont it be good because that saves me and extra 200... als...