Whiteline KDT921 Subframe Mount Bushing Insert Kit

The Whiteline KDT921 Subframe Mount Bushing Insert is an innovative solution designed to eliminate rear crossmember movement without the complexity of full bushing replacement. Unlike traditional bushing kits that require complete removal and installation, this insert works in conjunction with your vehicle's original factory bushings for a straightforward DIY-friendly installation.

Key Features:

• Insert design works with OEM bushings—no removal required
• Reduces rear subframe misalignment and unwanted movement
• Eliminates compliance and "lost motion" during cornering
• Provides more positive rear-end feel and improved handling response
• Simple installation process suitable for home mechanics
• Durable construction designed for street and motorsport applications

This kit directly addresses the common issue of rear crossmember flex that occurs under hard cornering and acceleration. By reducing subframe movement, the KDT921 delivers sharper turn-in response, improved rear stability, and a more connected driving feel. The insert design makes this an ideal upgrade for enthusiasts seeking enhanced handling without the labor intensity of conventional bushing replacement.