I had the transmission replaced by a local company that has a good reputation for making good rebuilds, even does them for local Honda dealers. I went to pick it up last Friday and gave it a good test drive before paying for it. I asked him if he had installed the trans cooler and he said it did not need it, so he had given me a reduced price on the bill. He said the mods they make to the trans keeps the fluid flowing better. I had told him I planned on towing a small camper with it, about 1300-1500lbs, and thought it needed the cooler. I got a one year warranty on the trans. Should I demand he install the cooler? Seems like it could not hurt to have it. I will admit, the car runs great, and it has gotten the best gas mileage it has ever had since I bought it.