This Ferrari 355 F355 ECU Bosch 0261204186 M5.2, fits cars from 1996-1999.
This ECU also has these alternate Ferrari numbers:
Ferrari 355 ECM Location
Common Symptoms of a Bad Ferrari F355 ECU:
When you choose the repair service you send your unit to our location. Once we receive the unit, we test and diagnose the unit. Then we repair it, if it is needed, and we send it back to you with a report of what caused the unit to go bad.
HOW DO I SEND MY ECU FOR REPAIR?
Step 1: Click the orange "Fill repair form" icon
Step 2: Fill out the form.
Step 3: Print the email confirmation.
Step 4: Pack your ECU/DME set securely.
Step 5: Send the repair form along with your ECU/DME set.
WHAT IS THE TURN AROUND TIME FOR THE REPAIR:
Repairs take between 3-5 days once we receive the unit at our offices.
How to install the ECU
General Technical ECU Troubleshooting Guide