Is the progress sway bar as good as the stillen? What is the difference in those two? Also, is there any modifications needed to be done in order to install the progress bar? Where can I buy it the cheapest? Thanks .

 

it does the same thing for cheaper. its what i got. very easy install

 

I have the Progress as well. Very simple install and the improvement in the stability of the a$$ end always brings a smile to my face on exit/entrance ramps.

 

Some org members got their Progress RSB from SWA for like $109. Unfortunately, that sale is over. But, SWA will sell the RSB for like $125 shipped. I'll be ordering mine pretty soon. Email SWA and ask them.