FORD SIERRA 3DR COSWORTH STAGE 3 L1 ECU CHIP 803 T34 YB

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Stage 3 ECU upgrade chip for the 3dr Sierra RS Cosworth 2WD with standard YB engine and Level 1 (L1) ECU.

This ECU chip is designed to work with uprated Bosch dark green 803 injectors, T34 or T35 turbocharger and Weber-Marelli 3 bar MAP sensor. With this ECU upgrade your 3dr Sierra Cosworth will achieve up to 350 bhp.

The following modifications are recommended:

• Free-flowing air filter
• Free-flowing exhaust
• Bosch Dark Green 803 injectors (required)
• 3 bar map sensor (required)
• T34 or T35 turbocharger
• Boost increase to 22 psi (Manual Boost Controllers available separately)
• Super unleaded fuel (97 RON or higher)