As per I Watch And I Know TOYOTA's From YEars And Years....!
My 2Cents Say That TRD Work Is Done On Stuff Like Exhaust /Sportivo Suspension And Might Be Some Body/Cockpit Parts..
TRD Engine Rebuild COST ARM's And LEGS And Engine Sould Not Be Looking Like This After TRD Upgarde....The Most Common Upgrade For This Motor From TRD Is Bolt-on Turbo Kit....Boosting It
Thats For Older Model Also....This Model I Can't See Any Major TRD Upgrades Available