Just depends on the traction system that's on the 400E, wether or not the wiring or throttle actuator would need to be changed. The trans is as strong as the one in the 5 liter cars.

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MERCEDES Benz Master Guild Technician (6 TIMES)
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190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
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