ECU Question

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I am looking to perform an swap out on my MP5 to a 2003 MSP engine however I am having a hard time finding the ECU/M.

Can anyone tell me which model I should be looking for? These are the options at my local reseller.

Elec Cont Unit (ECU), (under R. side of dash), 2.0L, MT, MAZDASPEED, ID FSAE-18-881
Elec Cont Unit (ECU), (under R. side of dash), 2.0L, MT, MAZDASPEED, ID FSAE-18-881A
Elec Cont Unit (ECU), (under R. side of dash), 2.0L, MT, MAZDASPEED, ID FSAE-18-881B
Elec Cont Unit (ECU), (under R. side of dash), 2.0L, MT, MAZDASPEED, ID FSAE-18-881C

Thanks

 

[yudkib]

i dont know the answer, but i would imagine the letters are revision codes. i.e. flashed vs. unflashed, etc.

 

[grey]

bump

 

[shane02pro5]

Edit nevermind

 

[ogsp5]

Get in touch with SpiceyMSP he is a vendor that does the lastest MSP ecu flash. From the standard P5 to the MSP ecu