MFactory Helical limited slip differential (LSD) 2013-2018 Focus ST

IN STOCK! as of 3/29/2024 Gain a prominent advantage over the competition with the MFactory Helical Limited Slip Differential. Through the smooth and constant distribution of power to the wheels, the MFactory Helical LSD puts the power-to-the-ground and maximizes your vehicle's traction. A must for any race car, be it Street, Strip or Track!  Diamond Cut to exacting tolerances from Forged High-Nickel-Chromium-Molybdenum SteelPerfect fitment & finish ensures hassle-free installation & maintenance, each and every time Designed using leading-edge Solidworks 3D CAD & Cosmos FEA softwareAdvanced Gear Geometry minimizes parasitic drivetrain losses. Race transmissions built with MFactory components transfer, on average, 1-2% more power to the ground over our competitors! Stress Tested on loaded dynosEnsures our differentials are strong enough to handle the shock loads encountered during racing, yet also durable enough to handle the variable loads encountered during day-to-day dr