• Differential subframe lockdown system
• Eliminates subframe movement under hard acceleration and cornering
• Improves drivetrain response and power delivery consistency
• Direct-fit bolt-on installation

Locking Down Movement the Factory Never Addressed

Under hard acceleration and cornering, the factory subframe and differential mounting can shift more than most owners realize, and that movement translates into inconsistent power delivery and less predictable handling exactly when you're driving hardest. PERRIN's Differential Subframe Lockdown System addresses that movement directly, tying the subframe down more securely rather than leaving the factory rubber mounting to absorb loads it was never really designed to fully control. That reduction in unwanted movement is especially noticeable on a car with increased power, where the additional torque exaggerates whatever play exists in the stock mounting. It's a straightforward improvement that's easy to appreciate once it's installed.

A Direct Bolt-On Upgrade With Real Handling Benefits

Installation is a direct bolt-on job using the factory mounting points, so there's no cutting or fabrication required to add this genuine handling and drivetrain improvement. For a WRX, STI, Impreza, or Forester XT that's seeing spirited driving or increased power, this is exactly the kind of chassis-tightening upgrade that pays dividends across handling, launch consistency, and overall drivetrain feel. It's a proven upgrade for anyone who's noticed their car feeling less locked-down than it should under hard use. That combination of durability and performance is what makes it worth the upgrade.

Straight From Subispeed

A genuine chassis and drivetrain tightening upgrade for 2008-2014 WRX — reduces unwanted subframe movement under hard acceleration and cornering.

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