I first purchased a yellow top a few years ago and installed it. well after about a year I noticed hard starts and dimming lights when. After a bit longer it died. The other two to the same affect. Granted this was in a car with a large audio system it did not perform any better than standard batts. They were never drawn down excessively either. I then purchased a interstate and ran it in that car for over a year with no problems then put it in the Z. I highly recommend Odyssey Batteries if you are looking for a performance batt. I currently run it in my audio car
I do not fear what the future holds for me, I am not afraid to die.