XR'S and T'series are speed limited to 255 kph .. AUi & AUii utes and TL series are limited to 185 kph because of tail shaft length .. apparently tickford have found that the longer the tailshaft the more 'whip' they generate (not a good thing ).. as for autos they will go the distance, but still shouldnt be over sped and they will drop there guts if you continualy spin them to fast.. as for speed limiting your mad if you remove the limiter because its there to stop your car self destructing .. i know in my ute that i really dont want the tail shaft coming through the floor..
regards brad