Perrin Differential Lockdown System 2015-2025 WRX / 2015-2021 STI / 2013-2025 Crosstrek / 2024-2025 Crosstrek Wilderness / 2012-2025 Impreza | Enhanced Traction & Stability | Drivetrain Upgrade
Overview
The Perrin Differential Lockdown System is a precision-engineered upgrade designed to improve the rear differential stability on a wide range of Subaru models including WRX, WRX STI, Crosstrek, Crosstrek Wilderness, and Impreza from 2012 through 2025. This system replaces the factory rubber bushings with high-quality polyurethane bushings and aluminum lockdown plates, reducing excessive differential movement during hard acceleration and aggressive cornering. It is ideal for Subaru enthusiasts seeking sharper drivetrain response and improved traction without compromising daily drivability.
Perrin Performance approaches this product with a focus on durability and performance balance. The polyurethane material offers superior wear resistance compared to stock rubber, while the aluminum lockdown plates provide a rigid mounting surface to minimize drivetrain slop. This combination ensures consistent performance gains while maintaining a comfortable level of noise, vibration, and harshness (NVH), reflecting Perrin’s commitment to delivering parts that enhance driving dynamics without sacrificing refinement.
For Subaru owners, this differential lockdown system translates to a more connected and predictable driving experience. By stabilizing the rear differential, it improves power delivery to the wheels, especially during spirited driving or performance tuning scenarios. This upgrade is particularly beneficial for those who push their Subaru on winding roads or track days, where precise traction and drivetrain feedback are crucial for maximizing control and confidence behind the wheel.
Features & Specifications
This Perrin Differential Lockdown System is engineered for Subaru WRX, WRX STI, Crosstrek (including Wilderness), and Impreza models from 2012 to 2025. It features premium polyurethane bushings paired with aluminum lockdown plates, delivering enhanced drivetrain stability and improved traction for enthusiasts seeking better handling and drivetrain response.
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Brand: Perrin Performance
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Product: Differential Lockdown System
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Part Number: PSP-DRV-536
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Fitment: 2015-2025 WRX / 2015-2021 STI / 2013-2025 Crosstrek / 2024-2025 Crosstrek Wilderness / 2012-2025 Impreza
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Material: Premium Polyurethane & Aluminum
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Finish: Natural Aluminum (Lockdown Plates), Black Polyurethane Bushings
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Construction: Molded Bushings with CNC Machined Aluminum Plates
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Origin: Made in USA
Key Benefits
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Performance: Reduces rear differential movement for improved traction and power delivery during aggressive driving.
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Durability: Polyurethane bushings resist wear and degradation far better than stock rubber components.
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Fitment: Direct OE fitment with included hardware ensures a straightforward installation without modifications.
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NVH Balance: Engineered to minimize added noise and vibration while providing firmer drivetrain support.
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Handling: Enhances rear-end stability and responsiveness, benefiting cornering precision and driver confidence.
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Value: Long-lasting upgrade that complements other performance modifications and tuning efforts.
What's Included
- 2× Perrin Aluminum Lockdown Plates
- 2× Premium Polyurethane Differential Bushings
- All necessary mounting hardware
- Installation instructions
- Warranty documentation
Installation & Compatibility
Installation of the Perrin Differential Lockdown System is designed to be straightforward with a direct OE fit, requiring no major modifications. Basic hand tools are sufficient for most experienced DIYers, but professional installation is recommended for those unfamiliar with drivetrain components. No special tuning is required after installation, though alignment checks are advised to ensure optimal handling. This system is compatible with specified Subaru models listed in the fitment and is not recommended for vehicles outside these ranges.
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Professional Installation: Recommended for best results
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Modifications Required: None
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Verify Compatibility: Confirm fitment for your specific year and trim level before purchase
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