I have a stock one. I want to put on an aftermarket one to add a little bit to it. I think it would help it run a little better. Sorry anther question to go back to the brake light. I still am not sure how to make it light up brighter when I pull the brakes. I have it wired correctly from what I can see on that diagram. It is a little hard to see which wires connect to each other. They are a little fuzzy.