i just sent you an email to start with. yes you will want to get the reflash as we dialed in that tune specificaly for the intake manifolds/CAI-DCAI/178 pulley as we needed a little more fuel that was given to us from the oem calibration. the addition of the manifolds put the AFR into the low 13's and that was too lean for our liking, hence the new tune tailored for them.

as for the 18:1 A/F Ratio at wot up to 158mph, stop going WOT in that car at all costs until that has been corrected. yes you are riding a ticking time bomb at that point! it is the 19psi of boost that is causing that for you, let me guess.... your issues is from ~ 4900rpms to redline right?