Smooth, Progressive and Quiet Locks Along with Easy Tunability
One of the only negative things we can come up with about the Focus ST is its lack of a mechanical LSD (limited slip differential). Thankfully, hope is not lost. OS Giken's Limited Slip Differential vastly improves handling and maximizes traction when you need it, saving your brakes from some serious abuse. Your 2013 to 2017 Focus ST equipped with this OS Giken Limited Slip Differential will be more stable in all road and weather conditions, allowing for a safer driving experience. Lock progression timing can be adjusted by using stiffer or weaker pressure ring springs, allowing the locking progression to be fine-tuned to your specific needs.
Stock Handling in Slow Speeds, Full Power When Needed
While the Giken Limited Slip Differential is very effective at smoothly locking your differential and throwing down maximum power to your drive wheels under load, you'll also enjoy normal stock handling at slow speeds and street driving. The Giken OS LSD's standard spec allows for low preload while still retaining fully progressive 100% lock capability for when you need it. Due to OS Giken's high-precision manufacturing, high-grade materials and unique design implementation, neither a break-in period nor rebuild is required for operation of this LSD. OS Giken intentionally over-engineers their LSDs to offer the best performing, most durable clutch-type LSD available.
Fitment: 2013-2017 Focus ST 2.0L EcoBoost