Can anyone suggest a good piggy back unit for the stock ECU??
Cheers,

Best to replace the whole ECU...depending on budget, but second hand ones come up on various forums from time to time.
In order of pricing...Link...Autronic...MoTec...
Personally I would go the middle option.

Piggy back ECU's that I have seen people on here use are UniChip or Haltech.

You can have my UniChip with boost controll module for $450 if you like! I have it on my 02 STi at the moment and I have got 272HP on 1.3bar...got the dynograph to prove it as well.

Hmmmm, judging by your name(evo4clubspec) you will need a UniChip pre dating mine...

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wounld need unichip type a, disreguard pm.

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get a power fc

i have a unichip on my gt forester, goes great, there is only one place in perth to get it installed & tuned though (tim slako at west racing in ozzy park) cost me about $550 for install & tune, i wanted more boost than he tuned it for so it cost me another $200 for that

as others had said i wished i'd gone down the power fc road with a z32 afm now for flexiblity of tuners

don't get me wrong i'm happy with it and it runs great (approx 180kw atw) with a vf-22 on 16-17psi with all the usual basic mods like zorst, cai etc
but i'll have to sell it & get a pfc if i change the eng internals / heads & go for more boost

hope this helps

helps me

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2002 WRX - New Ej207 Short Motor + More in Progress

..OMG! thats so sick it makes other things that are sick look less sick..

haltech are stand alone. microtech your thinking of?

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i think you have it the wrong way round, my mate is contantly hounding me to get a microtech stand alone system (he's a rotary head) i think rigoli's use the microtech over east on thier fully bombed rex's

Power FC