I had exactly the same excellent experience with Summit - and it was my fault when I clicked on the wrong part number for an MSD tach adapter. They had the correct part to me by 10:00 am the next day via overnight FedEx. I handed the reboxed wrong part to the driver and all but the initial shipping was at their expense. They may not always be the cheapest - but they do try, IMO hardest of all to be right!!!