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Old Mar 26, 2011 | 08:29 PM
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I have a 94 wrx import and i have been offered a z4 ecu is it just plug it in and away we go or is it not worth it.
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Old Mar 26, 2011 | 09:48 PM
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yes it is may be worth looking at your ecu if your impreza is a late 94 one it may already have a z4
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Old Mar 26, 2011 | 10:00 PM
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my ecu is not z4 i have had a look what benefits wood i gain from fitting a z4 ecu
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Old Mar 26, 2011 | 10:39 PM
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Better fuelling map,slightly more boost.

WRX/STi Saloon ECU's 2C, U8, W6, W9 - 11.47psi held to redline. Fuel-cut 14.57psi
WRX (1995/96) ECU Z4 - 12.71psi, dropping to 11.78psi @ 6600rpm. Fuel-cut 15.65psi.
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