SUBARU IMPREZA WRX/STI 01-06 BRD REAR DIFFUSER

Info på Engelska:

So what are diffusers and what do they do? Brought into the spotlight in 2009 during the F-1 season diffusers can undoubtedly increase downforce on track, how?......As a vehicle moves forwards it cuts into the air displacing the air molecules. With this movement the air molecules nearer the rear of the vehicle are disrupted more vigorously. This produces a higher rate of disrupted air molecules which results in vehicle ‘lift’ which is something you do not want when driving at high speeds. What you are trying to achieve with aero parts is ‘downforce’. With a diffuser in place the disrupted air molecules which are moving towards the rear of the car are channeled through the diffuser which lessens the rate of disrupted air molecules generating cleaner air thus providing more ‘downforce’. As a result acceleration and control is increased significantly.

To put it simple, diffusers clean up the disrupted air at the rear which achieves higher acceleration, control and stability.......and of course they look damn good!