Originally Posted by uspopo
I think the pre-11 STI rsb are less than 19mm so I would double check on the size. Our OEM 12/13 Impreza is 15mm so I wouldn't spend more than a sixpack for a used 16-18mm one unless you are going to install it yourself.
Correct, If you're going to do it do it right. Cheaper than OE and adjustable 22mm to 26mm
The only thing i didnt like about Progress was the weight, they are solid steel and weigh a ton. So if that's a concern... but it made my FXT and Impreza wagon dance through the corners. Very tail happy.