It had to do with size, Steeda is 25.4mm, Whiteline is 22mm and adjustable, H&R is 24mm. Those were the three brands we found when looking and decided to go with the 25.4mm to help remove the understeer. Price point wise those three brands were all pretty close to each other. It we need the bar to be stiffer there is also the option for the upgraded mounts that Steeda sells for less deflection. Although that may not be needed, but we will make that decision after an autocross/track day events.
Edit: Also Neil has had Steeda parts before on his Focus ST and enjoyed their customer service as well as their quality in products.