Add to Cart Quaife Porsche 944 (1986 Onwards Inc. Turbo) Quaife Atb Helical Lsd Differential, Qdf4Q $1,232.34 Quaife ATB Helical LSD differential for Porsche 944 is suitable for Porsche 944 models, model year 1986 onwards, including Turbo. A direct replacement for the standard Porsche differential, the Quaife ATB Helical LSD differential transforms your... $1,232.34 Add to Cart