Progress Tech 03-06 Scion xA/03-07 Scion xB Rear Sway Bar (22mm)

When you're looking to tighten up the handling on your 2004-2006 Scion xA, this rear sway bar from Progress Technology is a solid option. It's designed to replace the factory bar and its softer bushings with a larger diameter, stiffer setup. This change directly combats body roll, which is that sensation of your car leaning over in turns. By keeping the car flatter, your tires stay more consistently planted on the road.

Progress Technology builds these bars in-house using alloy steel and then outfits them with harder polyurethane bushings. The combination of a larger diameter bar (22mm in this case) and less compliant bushings means you get more 'roll stiffness.' This translates to better grip and more control when you're cornering, giving you more confidence behind the wheel. The ends of the bar are precisely bent and welded to ensure it fits right where the original one came from.

This sway bar is a straightforward way to improve your car's chassis balance and reduce the tendency to understeer, or 'plow' through corners. It's a popular upgrade for this generation of Scion because it makes a noticeable difference in how the car feels during spirited driving.