This Week At Quaife Engineering:
Fiat 500 ATB differential:

The QDH3K Quaife ATB Differential®️ for your Fiat 500 is a direct replacement for the standard open differential. (Non Abarth models only).
The Quaife ATB differential®️ is proven in circuit and drag racing, rallying and road use. A true fit and forget differential that is backed by a lifetime warranty.
The QKE12Z Quaife 4-Speed Synchromesh Gearkit:

The QKE12Z Quaife 4-Speed Synchromesh Gearkit for the Ford Escort Sport retains the original Ford mainshaft and can be purchased with an optional Quaife ATB differential®️.
The QDF28E Quaife ATB Differential:

The QDF28E Quaife ATB Differential®️ for your Subaru BRZ / Toyota GT86 is a direct replacement for the standard open differential.
The Quaife ATB differential®️ is proven in circuit and drag racing, rallying and road use. A true fit and forget differential that is backed by a lifetime warranty.