ACT Performance Street Sprung Disc Subaru STI 2004-2021 / Legacy GT Spec B 2007-2009 | 3000503 Vehicle Make_Dodge DB Series Blue Wideband AFR

DB Series Blue Wideband AFR Gauge

For stock 2006-2014 WRXs or WRXs with basic bolt-on modifications

AEM also incorporated a failsafe that provides output to either decrease timing

allowing the engine to accelerate faster

ACT Performance Street Sprung Disc Subaru STI 2004-2021 / Legacy GT Spec B 2007-2009 | 3000503 Vehicle Make_Dodge DB Series Blue Wideband AFRFitment Information: 2004 2021 Subaru STI 2007 2009 Subaru Legacy GT Spec B Note: Replacement for ACT SB4 part numbers Features: Wore out your ACT Performance Street Sprung Replacement Disc for the Subaru STI (3000503) and don't want to spend all the cash on a new clutch kit? Get this replacement instead! ACT street performance spring replacement disc features premium organic materials with high copper content for better heat transfer. Performance