How it works

After years of testing and refinement Tarmac Engineering is pleased to offer you what we believe is the most diverse tuning package on the market for a large range of vehicles. Great drivability, increased power, torque and most importantly it’s safe, reliable and fully customizable.

More economy, more power, increased torque, it's all in the code

This can all be done at the comfort of your own home or work place

  • Step 1
  • Step 2
  • Step 3

Once you have received your SpecTune controller simply plug it into your vehicle and follow the on screen prompts and Quick Start Guide instructions found in the box. The first process is to download your original factory* file from the ECU to the SpecTune controller. 

*please ensure the factory file is in the ECU. If your car is currently tuned or has had a trial tune on it at any time we may not be able to communicate properly with it. 

Plug the controller into your PC and install our SpecTune software then follow the Quick Start Guide instructions. The factory file is then sent to us and this is where our expert coding comes into play. We custom map your ECU tune specifically to the modifications you have selected at the time of purchase. 

You will receive your modified files back to be uploaded onto the controller via the SpecTune PC software. You're then ready to load the Performance tune into the vehicle's ECU. Follow the on screen prompts and Quick Start Guide instructions and within a few minutes your tuned file will be loaded and the vehicle ready to drive.

Now its time to enjoy your new engineered performance!

Need more information?


Please feel free to contact us with any questions or click here to purchase




SpecTune is a tuning solution that can be used at the comfort of your home or workplace
Custom tuning software written specifically for your vehicle
244kw @ all 4 wheels Stage 2.5 tune for 8v S3 / Mk7 R now available

Authorised Dealer

  • 1
  • 2
Tarmac Engineering owns and sells the most powerful ECU chip tuning solution for are large variety of vehicles. We're best known for the VAG range of vehicles including VW Golf R, Golf Gti, Jetta, Tiguan, TDI, Audi S3, RS3 S1, Q3, Skoda Octavia RS and lots more. Our SpecTune can be performed in any state in Australia, Brisbane (headquarters) Perth, Adelaide, Melbourne, Sydney, Darwin, Hobart, Canberra and internationally.