The GKTECH air diversion panels sit between your front bumper and the radiator support and not only make your engine bay look cleaner they also serve a purpose. The air diversion panels help to direct air into the radiator as opposed to around it and you will see a drop in water temperatures on the track (nothing to write about but it all adds up)- CNCレーザーカット 2mm厚アルミニウム- アノダイズ処理- 日産 S15 シルビア GKtech japanhttps://jp.gktech.com/