About Us
Service
Dennis Stojanovski is the sole proprietor of Denstoj Auto Centre. With over 40 years in the trade, Dennis has worked across a wide range of makes and models, gaining deep expertise in diagnostics, engine rebuilds, and performance tuning.
He has a particular passion for Japanese and European imports — especially the Mitsubishi Evolution and Nissan Skyline GT-R platforms. From JDM classics to modern turbocharged builds, Dennis brings a meticulous approach to every job.
Our Carrington workshop is fully equipped with the latest diagnostic tools and tuning equipment. Whether you’re chasing a rego inspection or a full engine build, you're in good hands with a team that lives and breathes performance.
Rocker Retainers
Protect your build. Rev with confidence. Push the limits.
At Denstoj, we don’t just sell engine parts — we solve problems. Our rocker retainers were born from the frustration of blown engines and the lack of a reliable solution to valvetrain failures in modern performance engines.
Built by engineers with real-world experience at companies like Toyota, GM, and Tesla, our solutions are designed to keep your engine alive at the limit. We specialise in precision-machined valvetrain components — including our flagship rocker retainer kits and solid lifters for high-RPM applications.
Our products are trusted in platforms like the GR Yaris (G16E-GTS), Subaru FA20 & FB25, and the Nissan SR20. They’re proven on track, and built to last on the street.
What started in a humble Newcastle workshop has grown into a brand trusted by engine builders and performance shops worldwide.