[MisterNuts]

If you are going to swap, definitely swap to 06. The wideband primary makes tuning a lot easier.

While I wouldn't recommend tuning an SAFC, I can provide some pointers in that department as well.

 

[MisterNuts]

Call the shop, 2J doesn't advertise the swaps on their site.

 

[MisterNuts]

I'd look into the PMAS MAF instead. I've heard even Uprev recommends it over theirs. I have one but have yet to install.

 

[MisterNuts]

Locked ROMs cannot be viewed whatsoever FYI. Any shop making a buck tuning via Uprev will likely lock their ROM as well.