Advan RG-D2 Alloy Wheel - 15x5.5 ET45 4x100 Machining and Black Gun Metallic QJUTSU The Spoon rear diffuser smooths

The Spoon rear diffuser smooths airflow underneath the rear bumper to reduce drag and produce downforce

Performance benefits can be found across the rev range

Fitment Note

We've found these suitable for all 6 speed STi transmissions found on the Forester STi SG9

When performing free-air calibration

Advan RG-D2 Alloy Wheel - 15x5.5 ET45 4x100 Machining and Black Gun Metallic QJUTSU The Spoon rear diffuser smoothsYokohama ADVAN Racing RG D2 Alloy Wheel Six years passed since the current RG D model was launched in 2010. In 2016, this model will receive its first model change, coming out as the RG D2. Design andamp; construction: Three types of concave spokes are standard designs for 18x7. 5J 8. 0J 8. 5J, while 18x8. 5J 9. 0J 9. 5J are the GTR design, and 9. 5J 10. 0J 10. 5J 11. 0J are the Super GTR design, each with as great a concave design as is possible with