For the Alfa Romeo 4C, Bacci Romano plate type diff unit is a simple and effective unit, with proven performance in European race cars. This is a limited slip differential specifically developed for the Alfa Romeo 4C Coupe and Spider.

We recommend installing the diff unit at the same time as your Alfa 4C clutch service is due for better handling and traction control along with increased reliability of the plate type differentials.

Choose from 2 rates when ordering, 1) Lockup characteristics optimized for fast road use, or 2) Lockup characteristics optimized for race use.

Longtime Alfa Romeo specialist Bacci Romano have history making gearbox back to the Touring Car era with specialized parts for the Alfa Romeo 155 and 156 transaxle.

Made in Italy, of course:)

Current lead time is 8 weeks from time of order.

Shipping included to lower 48 states only, inquire for overseas shipping rates.