Perrin Pitch Stop Brace - Black - 15-21 Subaru Impreza WRX / STi - PSP-DRV-112BK 5mm with inlet diameters ranging from

with inlet diameters ranging from 2" to 3" and in overall lengths ranging from 6

increases power by 1%

All of the inlets and outlets are the correct sizes and we paid extra attention to preventing interference with the transmission counterweights

(1) PERRIN Dry Intake Filter

Perrin Pitch Stop Brace - Black - 15-21 Subaru Impreza WRX / STi - PSP-DRV-112BK 5mm with inlet diameters ranging fromThe OEM Subaru pitch stop brackets fail over time. Help prevent this failure with the PERRIN Pitch Stop Brace. NOTE: * Is not compatible with CVT transmissions Perrin Pitch Stop Brace Black 15 21 Subaru Impreza WRX STi Fitment: 2015: Subaru: WRX: Base, 2015: Subaru: WRX: Limited, 2015: Subaru: WRX: Premium, 2016: Subaru: WRX: Base, 2016: Subaru: WRX: Limited, 2016: Subaru: WRX: Premium, 2017: Subaru: WRX: Base, 2017: Subaru: WRX: Limited, 2017: