Rear wheel steer works by actively altering the car's wheelbase in a virtual sense, discretely steering the rear wheels in either direction thus improving manoeuvrability at any given speed. This feature greatly help...
Using td04, wif intercooler and bov etc..the problem is that at 1-3 gear..i dint get any boost...only when at 3rd gear, and when speed is near to 100kph,then the boost slowly creeps up..at 4th gear i dint get any...