The I brace from TB Performance is a must for Fiesta ST owners. The bar replaces the heavy steel piece with a good looking, performance oriented bar. Personally this purchase was great because of how easy the install is and because my exhaust used to rub on the older steel bar that was there causing horrendous vibration at idle. When I installed the bar I couldnt feel the vibrations anymore and the midsection just feels so much more supported.