If you are running a larger top-mount intercooler, or an STI intercooler, and a larger hood scoop on your WRX, you need the STI Air Splitter to get the maximum improvement in cooling.
The STI Air Splitter is taller to reach the larger hood scoop to make sure that all the additional air is diverted over the intercooler. The STI Air Splitter also has a second diverter in the middle to make sure that air is also directed to the front and middle of the intercooler to further aid in cooling.
The STi Air Splitter’s are available for the 02-03 “Bug-Eye” WRX, the 04-05 WRX, and the 06-07 STi. Please make sure that you select the correct splitter for your car as they are not interchangeable.
This kit includes the splitter, and the rubber baffle that mates up with the intercooler. The STi Hood Scoop is sold separately.
For the 2002 - 2003 Air Splitter, the JDM Subaru Part Number is -- 90817FE120
JDM 2002-2003 'Bugeye' STi Splitter for STI Hood Scoop