Add to Cart Quaife Fiat 500 Abarth / Abarth Evo Quaife Atb Helical Lsd Differential, Qdh2K $1,461.85 Quaife ATB Helical LSD differential for the Fiat Abarth 500 is a direct replacement for the standard Fiat Abarth 500 open differential. The Quaife ATB Helical LSD differential transforms your car’s performance. Unlike a conventional plate-style... $1,461.85 Add to Cart