[ultra]

Am I correct to assume that our rear 'diffusers' are mostly cosmetic?

It would be interesting to see the effects of properly sealing off the gap around the rear muffler can using a panel such as the TRD or Borla ones, or even installing a proper venturi-style diffuser which blemds with the underbody.

Looking under the car it's pretty plain to see that somebody's done a good amount of engineering work on the design of all the under panels, vents amd flaps etc. Even the radiator is well sealed from the factory for optimal flow (there's little foam pieces surrounding it).

Beautiful to behold, and great to have on a car in this price range.

Also would seem to be a great starting point for a more elaborate aero setup.

Great thread BTW.