Whiteline Rear Subframe Mount Bushing Insert Kit - 2015-2026 WRX / STI / Forester / Legacy

Eliminate "Lost Motion" in Your Rear Suspension
The factory rear subframe bushings in your Subaru are designed with large voids to dampen road noise, but this compliance allows the subframe to shift under load, leading to a vague, disconnected feeling in the rear end. The Whiteline KDT938 Rear Subframe Mount Bushing Insert Kit is the essential "stealth" upgrade to lock down your chassis. These inserts fill those factory gaps, providing a more stable foundation for your suspension geometry.

Stealth Performance
Constructed from Whiteline's advanced translucent black synthetic elastomer, these inserts offer a "best of both worlds" solution. They provide the rigidity necessary to eliminate subframe squirm during hard cornering while maintaining enough compliance to prevent excessive vibration in the cabin. Because they are finished in a dark, translucent smoke color, they offer a clean, professional look that blends in with the factory components.

• Positive Traction Upgrade: Significantly reduces subframe movement for more predictable handling.
• Advanced Material: Proprietary synthetic elastomer outlasts traditional rubber and won't perish over time.
• No-Press Installation: Designed to slip into the voids of the OEM bushings for a straightforward DIY install.
• Stealth Aesthetics: The translucent black finish provides a discreet, high-performance look.

Fitment Applications:

• Subaru WRX: 2015–2026 (Base, Premium, Limited, GT, 6MT, and CVT) - Note: While officially listed for 2015-2024, this kit utilizes the same subframe mounting points found on the 2025 and 2026 WRX (VB Chassis). 
• Subaru WRX STI: 2015–2021 (All trims including Type RA and Series.White)
• Subaru Forester (SJ Chassis): 2014–2018 (XT, 2.5i, Touring, etc.)
• Subaru Legacy (BN/BS Chassis): 2015–2019 (3.6R, 2.5i, Limited)

Technical Specifications:

• Part Number: KDT938
• Product Type: Rear Subframe - Mount Bushing Inserts
• Installation Time: ~1.5 Hours