• Rear subframe lockdown system
• Eliminates rear subframe movement under hard cornering and braking
• Improves rear-end handling predictability
• Direct-fit bolt-on installation

Locking Down Movement the Factory Never Addressed

Under hard cornering and braking, the factory rear subframe can shift more than most owners realize, and that movement translates into less predictable rear-end handling exactly when you're pushing the car hardest. PERRIN's Rear Subframe Lockdown System addresses that movement directly, tying the rear 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 during hard trail-braking or aggressive corner exit. It's the kind of upgrade that quietly does its job without ever needing a second thought.

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 rear-end handling improvement. For a WRX, STI, or Impreza that's seeing spirited driving or track use, this is exactly the kind of chassis-tightening upgrade that pays dividends in rear-end predictability and overall confidence through fast corners. It's a proven companion upgrade to a front-end lockdown system for anyone chasing a genuinely tighter, more predictable chassis. That's real, functional engineering, not just a marketing claim.

Straight From Subispeed

A genuine rear-end handling upgrade for 2008-2014 STI — reduces unwanted subframe movement under hard cornering and braking.

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