This wire set w/loom came from Kingsborne. I dig it, it's been working great for many years. It's made using good BERU parts. The little riser bolts and the clamps for the loom are BMW parts from a lot of the older big-6 cylinder cars (5-series 535's, e9 coupes, 635's etc.) Be careful if you already have the loom and just want to order a replacement set of wires for it. The wire set made to fit the loom uses wires that are cut longer than the standard set has. The #3 wire will be too short. Been there, done that. Best is to call them and tell them what you want. As far as the coil wire, they always send me a coil wire that's the long non-tii length. You just unscrew the connector from the coil side of the wire, cut it to the length you want. Then screw the connector back on the wire. It's easy.
The BMW part number for the tube clamps: 12-12-1-350-635
I can't find the part number for those little riser bolt things.