I'm only asking because the catless headers don't have o2 sensors, and the autotune module is a wideband 02 sensor...So...If I install my 99' headers, will I need to do some custom work to get it to function properly? Where is the ideal place to locate an 02 sensor?
Yes, to use the wide band sensor you would have to have a bung welded in. It's not that big a deal to have a muffler shop do it, especially since you have it off the bike. Action