The preparations for the World Time Attack Challenge are now in full swing at Tunehouse with all cars in their final stages of completion.

Nathan Halstead took advantage of a track day last week to get some final test laps done in his Subaru STI.

With the fastest Subaru title at the NSW Time Attack under his belt, Nathan is confident the car will perform well in October.

Nathan and his STi will form a part of a three-car Tunehouse Time Attack Team along with the Bilstein S14 200SX and the infamous THR-86.