Home > Performance ECU Chips > Ford Cosworth Chips
Stage 1 ECU upgrade chip for the Ford Sierra Sapphire RS Cosworth 4WD with standard YB engine and Level 8 (L8) ECU.
This ECU chip is designed to work with the standard Bosch dark blue injectors, Garrett T3 turbocharger and Weber-Marelli 2 bar MAP sensor. With this ECU upgrade your 4WD Sapphire Cosworth will achieve up to 270 bhp. It is ideal for completely standard or lightly-modifed vehicles.
The following modifications are recommended:
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