The mod for the Mazda RX7 replaces the car's LED brake light in the NFS ProStreet game, practically replacing the rear optics. From the screenshots you can judge that the effect is not particularly cool, but the picture is updated and pleasing to the perception.
To install the LED Brakelight mod in the game Need For Speed Prostreet for Mazda RX-7, just replace the “textures.bin” file at Need For Speed Prostreet\CARS\RX7 with the one from the archive.