Do i need any kind of Fuel management system such as AEM EMS, S-AFC, etc to get my car custom tuned? I currently have HKS exhaust and downpipe, Hallman MBC, Walbro 255..

 

you could always get a simple flash.

 

This is kind of an open loop question. If you plan on any "TUNING" other than an ECU reflash, then yes, you will need a PEMS, or at least a fuel computer like the e-manage, or S-AFC.

If you only plan on a reflash, then you don't need the above said fuel computer, or any other components for that matter, other than some form of boost control. I recommend the Blitz SBC-id.

Good luck!

 

save your money for the aem ems, u tec or xede. flashes are a waste of money, i know that for a fact.

 

I have a flash and love it. Although I am getting a UTEC for continued upgrades, if you just plan on a few mods and flash for these particular mods, the flash is the best bang-for-buck.
If you check with everybody that has a flash, Dynoflash, X-flash or Turbo Trix, I'd say 90% of them are happy. You only hear B1tching form the unhappy ones, which generally didn't have a plan or clue on their mods and desired performance levels.

 

i heard that X-flash is boosting 25 psi?? is this safe for our cars?!