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- - STI V4 ECU on WRX (https://www.scoobynet.com/general-technical-10/249919-sti-v4-ecu-on-wrx.html)

Lee S

12 September 2003 07:23 PM

Friend of mine has a 1994 WRX and has the opportunity to get an STI Version 4 (280bhp)ECU. Will this go in as a direct replacement? How much difference will it make? Will anything need doing once fitted? Thanx

Lee S

12 September 2003 07:45 PM

Thanx for that. Probably saved him a few quid!

TonyBurns

09 December 2003 07:29 PM

Sorry to say but an STI ecu wont work in a wrx. (different crank sensor, injectors and a few other bits that have been changed in the engine/wiring loom).
Your best bet is actually an MY95/6 ecu which will go in as a direct replacement :D

Tony

[Edited by TonyBurns - 9/12/2003 7:29:58 PM]

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