I've found out that the 92x plugs are one step hotter than WRX plugs, and this might cause problems for people running engine management (especially when running ~16 psi.) and loss of power.

Paul, if you think this might be a potential problem, please PM me with a quote for a spark plug swap out... including parts. I'd like to go with the standard WRX plugs in that case. NGK I imagine?


I believe the following parts are stock:
WRX 2.0:
PFR6G

92X 2.0 Aero:
PFR5B-11

Just poi, it looks like the Saab factor detuned these cars a bit with some cheap tricks. I wish I'd had it dynod stock to compare it to a WRX.

Most of them make mid 11s peak boost, from what I've heard.

PM sent. :)