Aftermarket Sway Bar Bushings – Are Upgrades Worth It?

When the factory sway bar bushings wear out, the replacement options range from cheap rubber to upgraded polyurethane and even full bar upgrades. The question is whether spending more on poly bushings or a thicker sway bar makes a noticeable difference, or whether the basic rubber replacement is good enough. The answer depends on the car and how it is driven.

What the driver feels

1. The original bushings have over 80,000 miles.
2. More body roll in corners than when new.
3. Vague steering feel on the highway.
4. A clunk or squeak over bumps.
5. The car is lowered or modified.
6. The truck sees off-road or heavy use.
7. Uneven tire wear on the front.
8. The driver wants sharper handling.

When an upgrade makes sense

Basic rubber bushings restore the original feel. On a Toyota Corolla or Honda Civic, a factory-style rubber replacement brings the car back to how it felt when new. The sway bar works as designed, the clunk goes away, and the handling is restored. For a daily commuter car, this is the right choice, and it costs the least.

Upgraded poly bushings sharpen the response. On a Subaru WRX or Mazda MX-5, polyurethane bushings reduce the deflection that softens the sway bar effect. The car corners flatter and the steering feels more direct. The trade-off is more road noise and the need to grease the poly bushings on installation. For performance or off-road vehicles, the upgrade is worth it.

Choosing the right upgrade

• Decide the goal: restoring the original ride calls for rubber, sharper handling calls for poly.
• For a daily commuter or family sedan, stick with rubber bushings.
• For a performance car or a lowered car, poly bushings make a noticeable difference.
• For off-road trucks, poly stands up to mud, salt and trail abuse.
• Consider whether a thicker sway bar is needed, not just new bushings.
• Safety note: Poly bushings require the correct lubricant and proper installation to avoid squeaking.
• Match the bushing material left to right, because mixing creates an uneven feel.
• Read reviews for your specific vehicle to see if the upgrade is worth the cost.

Installation and expectations

• Choose rubber bushings for daily drivers and commuter cars.
• Choose polyurethane bushings for performance, lowered and off-road vehicles.
• Grease poly bushings thoroughly on installation to prevent squeaking.
• If you also upgrade to a thicker sway bar, replace the end links too.
• After installation, test the car on a curvy road to feel the difference.

Need Steering & Suspension Parts?

We supply OE-quality aftermarket steering and suspension parts for most makes and models.

Send us your VIN or OE number to get a fast wholesale quote.