Looks like they still may make them but it's listed under Neon/Mitsubishi. Not sure if that's for the 420a motor though as it makes sense it would be. I can't find any reference for "crower" not Brian specific to "4g63". That being said, my opinion is the factory Evo beehives would be as good or a better choice for a car not running 10k rpm.
/brox