Thread: Sti ecu
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Old 01-11-2021, 11:08 PM   #2
spoolinsti05
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Member#: 108051
Join Date: Feb 2006
Chapter/Region: Tri-State
Location: NY
Vehicle:
2005 TickingTimeBomb
Jr tuned TT Sleeved

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Quote:
Originally Posted by Dreed_ruu View Post
So I have a 2012 wrx Iím about to build I have a 257 block b25 heads and Iím about to get and sti intake manifold do I need to get and sti ecu or can I just use my wrx ecu?
If you do a sti trans you'll want the sti ecu for dccd or a controller. But you can run the wrx ecu for sure. Compression was actually higher on your other engine. Why did you swap the ej255 is just as good. And the d25 cylinder head are better imo.
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