MFactory Helical LSD for the Audi S4 B6 and B7 4.2 V8 with the 0A3 6-speed gearbox

Sale price6.442,00 leiVAT included
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The MFactory differential uses helical gears to move torque towards the wheel with grip, without clutch plates. It replaces the factory differential on the Audi S4 B6 and B7 4.2 V8 with the 0A3 6-speed gearbox.

Specifications

Brand MFactory
Code MF-TRS-05S4R-1
Type Helical (Torsen-style) limited slip differential, no clutch plates
Material SAE 4320 and SAE 9310 steel, forged, double tempered and sub-zero treated
Surface Shot peened for surface hardness
Gearbox 0A3, 6-speed manual
Position Rear differential

Which cars it fits

  • Audi S4 B6 and B7 4.2 V8 with the 0A3 6-speed gearbox, rear differential

What to check

  • There are no wearing plates: it needs no special oil and no periodic rebuild, unlike plate-type LSDs.
  • It works without locking, so steering response stays as it was with the factory differential.
  • Like any helical differential, it sends little torque when one wheel is in the air. Traction control covers this, and without it drivers use left-foot braking.