You should get a transmission cooler from the day you get the car. It will prolong the life of your tranny, and if you race it'll keep your times more consistent, rather than losing time due to tranny heat. Remember, when the ATX computer (separate from the engine's computer), reads tranny temps at above a certain temp, it will switch into a fail/safe mode which will alter the shifting and overall tranny control to keep it from overheating. The tranny cooler can and will keep the fluid temps as much as 50deg below normal driving temps of the tranny. A stacked plate design tranny cooler mounted in front of the radiator will decrease tranny temps greatly. The stacked plate design is a low pressure drop tranny cooler. The bent pipe designs cause a slight pressure drop in tranny fluid due to the added distance the fluid has to flow. Adding some extra ATF will reduce the pressure drop. And using the stacked plate tranny cooler, you'll little to no prssure drop, and more cooling. You will notice an almost gain in performance especially in the hot summer months. Remember heat kills...reducing heat reduces power loss, and will prolong the life of the engine or tranny. Also, use Mobil 1 ATF...it's probably the best around. Some people use a tranny fluid filter conversion kit, which will allow you to use a larger filter, this can help, since over time metal shavings and fragments end up floating around in the tranny. The better filtration you have, the cleaner the fluid will be. Get a nice tranny flush every 20,000 miles and your tranny may just last for ever.