I already have a TRD front strut bar and I'm looking for a rear piece now. From browsing mvp and other sites, I've noted that the Do-luck is the only one piece strut bar available for the MKIV. also, I rememeber reading that not many people noticed a difference with a rear strut bar. I'm happy with the results/performance with my TRD unit..but does anyone have any feedbacks with the rear bars?