Perrin Rear Differential Lockdown Kit 02-07 WRX / 04-07 STI / 1998-2008 Forester / 1993-2007 Impreza | Polyurethane Bushings | Drivetrain Stability Upgrade
Overview
The Perrin Rear Differential Lockdown Kit is engineered to enhance the drivetrain performance of select Subaru models by reducing excessive rear differential movement during aggressive acceleration and cornering. This kit is ideal for Subaru enthusiasts who demand sharper handling and improved traction from their WRX, WRX STI, Forester, and Impreza platforms. By replacing the stock rubber bushings with high-quality polyurethane components, the lockdown kit delivers a more connected and responsive driving experience.
Designed with precision and durability in mind, Perrin Performance utilizes premium-grade polyurethane to craft bushings that outperform factory rubber in both longevity and stiffness. The engineering approach balances firmness with comfort, ensuring that the bushings provide solid support without introducing excessive noise or vibration into the cabin. This product reflects Perrin’s commitment to quality and performance, making it a trusted upgrade for Subaru owners looking to tighten up their drivetrain.
In real-world driving, the lockdown kit minimizes drivetrain slop and unwanted differential movement, which translates to enhanced traction and stability. This is particularly beneficial for performance tuning and spirited driving where precise power delivery and chassis feedback are critical. The kit’s compatibility across multiple Subaru models ensures that a broad range of enthusiasts can benefit from this drivetrain upgrade, improving both everyday driving confidence and track-day performance.
Features & Specifications
This Perrin Rear Differential Lockdown Kit is engineered for Subaru WRX, WRX STI, Forester, and Impreza models, featuring premium polyurethane bushings that reduce differential movement. Constructed from durable polyurethane, it delivers improved drivetrain stability and traction for Subaru enthusiasts seeking enhanced handling and drivetrain response.
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Brand: Perrin Performance
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Product: Rear Differential Lockdown Kit
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Part Number: PSP-DRV-534
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Fitment: 02-07 WRX / 04-07 WRX STI / 1998-2008 Forester / 1993-2007 Impreza
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Material: Premium Polyurethane
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Finish: Black
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Construction: Molded Polyurethane Bushings
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Origin: Made in USA
Key Benefits
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Performance: Reduces rear differential movement for sharper power delivery and improved traction under acceleration and cornering.
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Durability: Premium polyurethane construction offers superior wear resistance and longer service life compared to stock rubber bushings.
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Fitment: Precision-engineered for a direct OE fit on multiple Subaru platforms, ensuring easy installation without modifications.
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NVH Balance: Designed to minimize noise, vibration, and harshness while providing firm drivetrain support.
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Handling: Enhances vehicle stability and responsiveness, especially beneficial for tuned or performance-oriented Subarus.
What's Included
- 4× Perrin Rear Differential Lockout Bushings
- 2× Perrin Differential Support Beam Lockout Bushings
- Mounting hardware
- Installation instructions
Installation & Compatibility
The Perrin Rear Differential Lockdown Kit is a straightforward upgrade designed for bolt-on installation with no major modifications required. Installation is accessible for enthusiasts with basic mechanical skills and common hand tools, though professional installation is recommended for those unfamiliar with drivetrain components. The kit fits a range of Subaru models including WRX, WRX STI, Forester, and Impreza from specified years, but verifying exact fitment for your specific year and trim is advised. No tuning is required after installation, but alignment checks are recommended to ensure optimal handling characteristics.
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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
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