If you're actually running in track days the upgrade might be a worth while investment but if I'm not mistaken none of the "regular" Subaru technical forums peeps here participate in track days. Events such as 1/4 mile, Solo-I, Solo-II time trials and the ever famous "I might go one day" really don't justify such an expense. Unless of course you're justifying the purchase with the bling-bling factor which is also fine. Just trying to help you guys spend your money wisley.