Fuel tank Removal:
https://www.hayabusa.org/forum/threads/gen-2-how-to-remove-fuel-tank.168658/
Bazzaz Power Source:
https://www.hayabusa.org/forum/threads/switch-power-for-bazzaz-afm.168140/
Many people do not like the T taps because the may cut through a few strands of wire v Posi Taps that would just push the strands aside. I must agree but I have had no issues at all using the T tap included with the ZFI kit. It's a lot neater looking too. You could always solder in a permanent connection or tap outlet in the same spot.
ZAFM:
https://www.hayabusa.org/forum/threads/zafm-of-any-use-with-a-good-map.117156/
As mentioned previously, this will probably not make a day and night dif if you have a good map. Ypou can tune for other things like fuel economy in the cruise zone though...or high altitude...or NOS, etc. Actyally, The self tuners by DJ are slow and Bazzaz is even a bit slower. You have to use them like you would on a dyno or you will not get good results. It is very methodical and totally distracting from enjoying a ride but very fascinating if yyou are curious about tuning. I can probably save you a lot of time learning how to use this if you keep in touch. I got the DJ system down and Bazzaz can't be a lot different....damn, just wish they would have welded my O2 sensor bung in the right place so I would have mine set up.
O2 bung plug
https://www.hayabusa.org/forum/threads/will-an-o2-bung-plug-fall-out.117114/
Bazzaz v PC5
https://www.hayabusa.org/forum/threads/pc3-or-pcv.104042/
That info is dated. Pretty sure DJ now has a PC5 for 8 injectors. I'd say either one, Bazzaz or DJ. DJ does have a PC5+Ignition which would be a big advantage but sure you can get an ignition controller somewhere if you like. SB-6 was a great one but they do not make it anymore.
And that is about all I got on the Bazzaz. Sorry, no install titorial. Wish I would have taken pics. The Bazzaz instructions were pretty straight forward. Make sure you get your primary conectrs to the primaries and secondary connectors to the secondaries...I forget if the primary is the top or bottom but that is common knowledge to many people on here.
Make sure you don't have bent pins----mine was very tricky!
"3. Will the self mapper o2 sensor die after about 50 hours of use?
4. Can I just leave the self mapper o2 sensor in the bung when I'm not self mapping?"
Leave it in. My Bosch sensor in the 14's DJ system has been in for 8 years and still tests perfectly. If it is welded at an agle so it cannot collect condensation, it should be good for a long time. I have heard of them burning out but mostly due to rust from improper weld angle. There is not adequate clearance under the oil pan....no way to weld that sucker at the right angle. IN fact, I cannot even get my sensor in. I guess the welder did not know there was an oil pan above the bung. That is why I cannot use my ZAFM until I get a new bung put in. Sucks cutting up this pipe for nothing. Francois had some good advice on positioning the O2 sensor. Farther back--where the pipe starts to angle up to the muffler. Best placed closer to the header, I believe but we are limited with space on the busa.