Cause a storm with Thunderbird Strut Bars. Firm up your chassis with a new Strut Bar. Stop people dead in their tracks after you update your Thunderbird Strut Bars. Strut Bars go between the suspension towers to keep your chassis rigid. Cause a little ruckus with your Thunderbird Strut Bars. A Strut Bar will go a long way to helping your suspension work to its fullest. Add some under hood flair and performance with a new Strut Bar.