• Re-engineered rear trailing arm bushings
• Maintains proper rear toe and caster under hard driving
• Important for larger-than-stock tire and wheel setups
• Hyper-Flex polyurethane construction

Keeping Rear Geometry Where It Belongs Under Load

Re-engineered rear trailing arm bushings dramatically help the vehicle maintain proper rear toe and caster under high performance driving conditions, exactly when factory rubber bushings tend to deflect and let that geometry drift. That deflection matters more than most drivers realize, since even small changes in rear toe under hard cornering or braking can make the car feel inconsistent or unpredictable. These bushings are built specifically to resist that deflection. That's exactly the kind of thoughtful design worth paying for.

Especially Important With Bigger Wheels and Tires

This upgrade becomes especially important when running larger than stock tires and wheels, since the increased grip and leverage those setups provide puts even more load on the trailing arm bushings. A worn or soft bushing under that increased load will deflect more, undermining exactly the extra grip you added the wider tires to gain. It's a smart, proactive upgrade for anyone who's already stepped up their wheel and tire package. For a component this critical, that level of engineering is worth having.

Straight From Subispeed

A smart companion upgrade for 2002-2007 WRX / 2004-2007 STI if you've gone to larger wheels and tires — keeps rear geometry consistent under the added grip and load.

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