Im upgrading my radiator. Im looking at the Ash's double pass radiator and the SPL with oil cooler. Which one is better for what im doing? My car will be a daily driven ( sort of ) out in LA with the bad traffic and hot days. I also will be using this car at the Texas Mile and the silver state challenge. Just want to get things right the first time. I did a search for spl radiator did come back with much.