AFR readings too low?

[rexify]

I just installed the aem wideband gauge and I think Im running a little low.

@WOT it reads 12.5

@ idle fully warmed up its about 15 or higher.

Ive got a redtop at stock boost, 370 injectors, stock ecu, sr20 mafs. full turbo back and mani, FMIC.

[S13NismoStyle]

12.5 at wot is fine, typically the afrs are even lower than that. I assume your running a walbro, stock sr's run anywhere from 11-12's or so afrs.

Your idle is perfect.

At WOT, turbo cars should run slightly rich of stoich(14.7). Usually below 12.5, this is to help reduce the chance of knock and keep egt's lower. when idling and cruising afrs are close to stoich to help with gas mileage.