My mechanic was installing an MSD ignition system in my FJ40. He could not get it to work and placed several trouble calls to MSD who finally gave him a test to determine if it was defective-it was. He called to tell me that he planned to send it to MSD for repair and return which would take a couple weeks. I asked him why he was not returning the defective part to summit racing where he bought it as they could easily replace it and deal with MSD themselves. He did not think summit would take it back. What has been the experiences of you guys will summit stiff him with the bad part or should I be looking for another explaination.