OS Giken Lexus IS350 GSE21 (TCD) Super Lock LSD

OS Giken is well-known for making high-performance drivetrain components, especially clutch-type limited-slip differentials. This Super Lock LSD, part number TY391-HC, is specifically designed for the 2006-2014 Lexus IS350 (GSE21 chassis with TCD). It's built to give you significantly improved traction and handling, especially when you're pushing the car hard or navigating tighter corners.

What makes this differential stand out is its Super Lock design. Unlike some other LSDs that can feel a bit unpredictable, the Super Lock system is engineered to provide a more consistent and locked feel during acceleration. This means less wheel spin and more power going directly to the wheels that have grip. It uses a multi-plate clutch system that engages smoothly but firmly, helping to put the power down effectively whether you're on the track or just enjoying a spirited drive on the street. The housing is well-built to handle the increased stresses that come with a performance differential.

Installing a limited-slip differential is a significant upgrade for your IS350, and this OS Giken unit is a solid option for those looking for a noticeable improvement in performance. It's designed as a direct replacement for your factory differential, though professional installation is recommended due to the complexity of setting up a differential correctly. You'll likely notice a big difference in how the car launches and corners after installation.