Level 8: Used on the 4x4 sedan (RS) Cosworth, has twice the memory storage capacity (128Kb instead of 64Kb) as Level 1 and Level 6. That's why chips can not be interchanged. Level 8 was available in 2 type since the engine in the 4x4 was available with and without hego-sensor (i.e. with and without catalytic convertor). Can be recognised by not having mounting flanges and a green or red label with WD48.08. The one with the green label and second code IAW048/01 is for the catalytic convertor (US83) model. The one with the red label and second code IAW048/02 is for the non catalytic convertor (15/04) model. It is uncertain if units/chips can be interchanged between red and green types/engines. There are also Weber Marelli P8 (no flanges, white label IAW48/P8) and Ford EECIV (totally different from Weber Marelli, central bolt to hold connector) ECU's around. These are however only intended for use on a Escort RS Cosworth but you might find them in some motorsport Sierra's (RS) Co