I can't consider recommending Rapid Tune Mornington after my experience.
When driving my car home from work one day, I heard a very unnatural sounding noise coming from the engine bay. After having it looked at by my regular family mechanic and being told the job was too big for them to take on, I had it towed to Rapid Tune so they could investigate.
After an intitial inspection, they communicated to me that they believed the noise was caused by the timing chain being damaged. Taking them on their word, I gave them the go ahead to replace the timing chain and the Hydraulic Rocker Lifters.
After this costly exercise, I was then told that they had discovered a sound in the bottom end of the engine and it would require further diagnostics and repairs. This ended up requiring the conrod bearings to be replaced. After this addition to costs and time without my vehicle, I was told that the engine was running okay and that it should be fine. Verbatim, I was told "9 times out of 10 you'll be fine in situations like this". Obviously elated at not needing to replace the engine entirely, I was happy with the outcome and took my car home, with a basic warning that there may be more trouble down the line, and to return in 1000 kms so they can check everything is okay.
Not even a full week later, the engine completely seized and the car was then written off as a result of this.
The most disappointing part of the entire affair was the next few days after I decided to get rid of the car. No opportunity for even a partial refund of the labour costs was considered and there was next to no follow up from Rapid Tune beyond a stock-standard email asking for feedback of their services.
Most surprisingly, one individual suggested I attempt to sell my car at a car yard that is known to sell lemons to unsuspecting customers. I would've thought something like this would be completely inappropriate for a mechanic to suggest but here we are.
After months of attempting to get in contact with the VACC to pursue some sort of follow up action, I feel it would be a disservice to locals to not post my experience. I would STRONGLY recommend that if you have severe vehicle trouble, you stay very far away from Rapid Tune Mornington. It's hard not to feel swindled out of my money after this experience, especially when a friend of mine who is in the industry tells me that as soon as the issues identified were discovered, he would've insantly said not to try to repair the engine.