PERRIN 02-07 Subaru WRX/STi / 93-07 Impreza / 98-08 Forester Rear Differential/Subframe Lockdown Sys

If you're looking to tighten up the rear end of your 2002-2007 Subaru Impreza, especially if you're pushing it hard on the track or autocross course, this rear differential and subframe lockdown system from Perrin Performance is a solid option. It's designed to address the common issue of rear subframe and differential movement under load, which can lead to a vague or sloppy feeling when accelerating or cornering.

This system works by installing solid bushings that take up the extra space in the factory mounts. By reducing the flex and movement between the differential and the subframe, you'll notice a more direct and responsive feel from the drivetrain. This improved connection means less power is wasted on chassis flex and more power gets to the wheels, giving you better control and feedback. The installation involves replacing the stock rubber bushings with these well-built polyurethane units, making it a straightforward upgrade for many DIYers.

For Subaru owners who want to improve their car's handling and drivetrain response, this lockdown system is a popular choice. It's a practical modification that makes a noticeable difference in how the rear of the car feels under stress.