please post your opinions, the question has come up so many times, maybe it could be a sticky..
Pros and Cons

 

I am not to sure on the SAFC reflash, but I have heard great things about the techosquare re-flash! Their timing and tuning is very percise, also their feedback rating is great. The best thing I would recomend is getting the limited flash... speed limter and rev limter, and then get a fuel computer like the emabage ultimate. That is a great combo, I have it, and it has been perfect!

 

safc=hack factory wiring
safc=no control over timing

i would suggest a Technosquare reflash, or spend enough for an eManage Ult / up-and-coming TurboXS or Motec 600 heheheh

 

reflash is only good if you bring it on their dyno. Otherwise you have the shipping back and forth issue and results are not guaranteed... (some people just give up).

SAFC works great with bolt-ons...

I'd say L-spec reflash + SAFC is best combination for simple stuff like I/H/E mods... otherwise the more hardcore the mods, the more hardcore the engine management

 

got mine the other day, haven't hooked up a wideband yet to double-check anything but it seems to pull quite harder in the mid-to-upper RPMs.