Add to Cart Quaife Alfa Romeo Gt Quaife Atb Helical Lsd Differential, Qdh2K-6 €785.23 Quaife ATB Helical LSD differential for Alfa Romeo GT is a direct replacement for the standard Alfa Romeo open differential. The Quaife ATB Helical LSD differential transforms your car’s performance. Unlike a conventional plate-style limited slip... €785.23 Add to Cart