For those that installed O2 bungs in thier '05 SEEG bikes w/FatCat 2-1 headers, what type of bung did you install? The flat 90 degree one or the 45 degree one?
I'm pretty sure the front pipe gets the 90, but even looking at Don's pics in his RevPerf install, it's hard to tell. I can get these bungs locally from any AutoParts store? They are 18M?
I'm on the fence as whether to have any-old-muffler shop weld in the bungs. Or send my pipes back with the ECM (prepaid) and let them do it. A little more peace of mind that they will take care in doing it right and also says they pressure test the welds for leaks!
Kudos for everyone that experimented and tested this. I really hated Zippers for forcing me to move to closed loop, not having a map for my bike and charging me $220 to update the Zippers ECM. If I have to buy the AT module anyway, the HD ECM does more and they'll help me getting bungs in the headers.....awesome company!