Whiteline 20mm Adjustable Heavy Duty Rear Sway Bar | 2008-2021 Subaru WRX STi (BSR49Z)

2014 OB with 245/45/20 ultra performance all season tires, Ksport air struts, 2015STI knuckles and brakes. This rsb is a great addition! I have only tried the center adjustment hole so far, but after a recent trip that included Ca hwy 108 and Sequoia, the car felt more stable in the curves with spirited driving, yet still flexy enough to give a comfortable ride. I think the softer adjustment hole will be similar to oem 16 mm bar and good for off road. I will try the firmer adjustment soon, but I think the middle hole is good for the beat up roads in Ca. Install is easy and kit is nice quality and good value since it comes with hardware and bushings. My oem links are still ok.

2009 WRX - Built Engine / E85 - DD and Weekend Track

I picked up a 24/22 setup for my 09 WRX. The rear Whitelines come with braces for the mounts. They are the ONLY brand that offers and includes this with their sway bars. It is 100% worth it just for that. I really like the Whiteline products. It came with grease for the bushings as well! It is nice that you can adjust the Sway bar. However, I find that I run 22 all the time. It really doesn't matter for DD or Track. I seem to get the performance that I want out of this setting. You may be different. The upgraded bushings + sway bar really make a difference on the 2009. It just feels planted. I have 2 winters on these bars and they are holding up great! Paint is still there and I have zero issues.

Make sure to buy endlinks to replace the OEM ones. Otherwise you loose a lot of performance out of the sway bars.

I would buy these again! Everyone that I know with a 3G WRX or STI loves this product.