I haven't seen much on the interwebs about it. I thought I'd ask before I buy something on ebay and hack it up. I'd like to put a 4-channel setup on a project I'm working on, but it would be nice to tweak a few things and change (or determine) the correct reluctor tooth counts. I have read about the Bosch aftermarket stuff, but I'm not interested in spending $12k+ on that.