is mrt performance still in business

Ah, the elusive MRT Performance—like a unicorn in the automotive tuning world. As of my last scuttle through the underbelly of car mods and Aussie workshops, MRT Performance's status is a bit foggier than a Sydney morning. They were known for their wicked tuning and performance parts, but recent official updates are scarce. Your best bet is to check ServiceCentral or local forums for the freshest whispers and sightings.

In short: if they're still alive, they're keeping it stealthy. Better keep your ear to the ground.