29/05/2026
Before the CNC machines, before social media, before the billet era… this was where it started.
An HR Holden 186S being tuned back in the 1960s inside the original Perfectune workshop, the business that would eventually become Yella Terra.
The second photo says it all. Original Perfectune advertising from 1969, promoting modified cylinder heads for Holden sixes, V8s, towing, street performance, and racing applications. Long before aftermarket performance became mainstream in Australia, these guys were already building engine packages and testing combinations in the real world.
Back then, performance wasn’t bought in a box. Engines were developed through testing, racing, trial and error, and long nights in the workshop chasing every bit of horsepower possible from Holden sixes and Aussie V8s.
What’s even better is that those original workshop photos hanging on the wall are still with us today inside the current factory. A reminder that while technology has changed, the passion for Australian performance engineering never left.
More than 60 years later, the same mindset still drives everything we build. Real parts, tested properly, built for people who actually use them.
Track tested. Street proven. Trusted for generations.
Who remembers the Perfectune days?
Or had a Yella Terra equipped car back in the day?
Drop your old builds, photos, or stories in the comments 👇
