The Whiteline Support-Lock Bushings for the Rear Differential are high-performance upgrade components designed specifically for 2011–2025 Subaru WRX and WRX STI models equipped with 2.0L or 2.5L engines. Crafted from durable polyurethane, these bushings are engineered to enhance the stability and responsiveness of the rear differential by reducing unwanted movement and flex. This upgrade improves handling precision and overall vehicle control, especially during spirited driving or aggressive cornering. The Support-Lock Bushings help to minimize drivetrain movement, resulting in more direct power transfer and improved feedback to the driver. Their robust construction ensures long-lasting performance and resistance to wear, making them suitable for both street and track use.

Designed as a direct replacement for factory components, these bushings are compatible with Subaru WRX and WRX STI models from 2011 to 2025. Installation involves replacing the stock rear differential bushings with the Whiteline Support-Lock Bushings, providing a straightforward upgrade that requires basic mechanical skills. The kit includes all necessary hardware for a secure fit. These bushings are ideal for enthusiasts seeking improved handling dynamics, increased stability, and enhanced driving confidence on both daily commutes and competitive track days. They are a perfect upgrade for those looking to optimize their vehicle’s rear differential performance without extensive modifications.