These carbon fibre air diversion plates ensure your radiator is recieving maximum air flow to aid in cooling. Not only do they help to reduce engine temps on modified or track / compeition cars, they also look good too! This particular model is designed for the Subaru WRX GDBF.
Note: Image for illustration purposes only.

Bosch 1000cc injectors set (4) high impedence
D2 Racing coilovers - super racing series
Clutch kit Subaru WRX/STI GDA\GDB HDCB
BC Camshafts 2JZGTE stage 2 / 3 / 4 