They are the best, most commonly used widebands by any and everyone running a boosted car. Everyone and their mom runs these because it is the more accurate way of seeing what your A/F ratios are over the el-crappo narrow band sensors.
Price drop for this week till Monday then it comes back up.
i wouldnt say the best, but deffinately one of the best! all widebands show u the same readings, i love my innovate! this is a good quality product, u should buy it!