Bought a set of injectors from them, that had a core charge. We sent back the cores. They never credited us for the core charges. After many phone conversations of promised credit, they got to the point of not returning phone calls. This was a few years ago, but just realized that I should warn others of the way they will basically steal money from you. We actually bought from them quite a few other times without any problem at all. However, this time cost us $1400. We will never buy from them again.