Yes, from what I've been told Whiteline is one of the best if you're looking for a rigid bar. I've only got reviews to go on, but they're from people that I know who've tried them along with other bars such as ST's. I liked the Suspension Techniques sway bar and for an aggressive yet still casual DD this is what I'd recommend for most people and even then probably only on the first or second tension level. As I mentioned, the rigidity of the bar isn't all that's involved in determining the rigidity of the ride and you can make adjustments to mellow out a bar that's too aggressive, but only to a degree and it usually requires additional hardware.
A word of warning for those looking for a teeth rattling rigid experience: The lower mount for the end links MUST have reinforcements welded on. People have found these mounting tabs are VERY prone to snapping off the arm even with ST's when under significant preload or when a very solid bar is used.
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