I put the German modified ZHP knob on about 3 months ago.... best $100 mod to date. I had already purchased a new unlit ZHP and was going do the led board swap from the stock knob until I saw this one on ebay. One simple cut under the existing hollow shift knob, and then remove and install the new one. It couldn't be easier, looks stock as well. Love it.
///M3 2008 Coupe - Melbourne Red, BMW Performance front splitter and rear spoiler, Akrapovic Evolution exhaust, carbon tips, MS StageII intake, Turner 12.5mm spacers on 220 rims, AiB LED Halo, full interior LED lighting, lit ZHP shift knob, black grilles & side lights, 09+ NAV controller, ...