Hey Zap, I have to agree with a lot of things that you had say regarding compliance; but there are a lot of xr6t owners pumping 300-400RWKw running std brakes. This would have to be way above the ADR limits of testing and no manufacturer would meet compliance. I increased my stopping power before I increased engine power, D2 are not bembro but they have cut my brake distance by at least half, they feel safe and the fronts have been on for 20,000 km with no probs at all. If other manufactures e.g. wilwood,AP and others cannot/ have not been ADR approved are they also to be avoided for the prospect of malfunction. Budget restraints put bembros out of reach; and yes You get what you pay for, but for me whoe before go, so I chose these NON-CHINESE Manufactured or owned D2 brake upgrade which was designed as a direct bolt on to the BF (and did go straight on). One contributer mentioned that a bolt came loose, but otherwise this D2 system has good reports from track day users around the globe, whether they be ricers or not. Some people use parts on there cars which are not the BEST MONEY CAN BUY and can still be happy with what they have got and personally I do trust these calipers and the NON-CHINESE engineering is supurb. :banghead: