Yes, I do that as well. Once I get a manufacturers part number I do an on line search for that part number. It is amazing how much price spread some parts have over the different outlets.

I watched one of those how to U tube video on changing his injectors and the guy gave the part number of the injectors he used. The same factory part number had a price range between $70 for a set of 8, up to $300+ per each! Then there were the rebuilt ones that had another wide price range. In my head, I automatically throw out the lowest priced and the highest priced parts figuring both are some sort of con job. From there its choosing the easiest places to buy from, with the best reviews. Then ask here for input. The last thing is to spin the wheel and take the chance, wait a bit longer, or pass completely.