GrimmSpeed Stage 1 Power Package Subaru STI 2015-2021 - Red | 191013-RD Forester_2003-2008 These 360-degree radial flow air

These 360-degree radial flow air filters feature our pre-oiled Pro 5R media with five layers of progressively finer cotton gauze media for maximum performance

Direct Fitment

5L WRX models (2006-2007) will also benefit from a VF series turbo upgrade

Fuel Rail & Throttle body combo S13 SR20DET

1000cc flow rate

GrimmSpeed Stage 1 Power Package Subaru STI 2015-2021 - Red | 191013-RD Forester_2003-2008 These 360-degree radial flow airFitment Information: 2015 2021 Subaru STI Features: This Is The All Around Stage 1 Package Your STI Needs. GrimmSpeed StealthBox Cold Air Intake Red Subaru STI 2015 2021 Part #: 060078 You've been asking for this bad sally for a while and it's finally here. The intake the for the 15+ STI can be thought of as a hybrid of the tube and filter used in the 08 14 WRX intake and the Stealthbox heat shield used in the 2015+ WRX intake. Small design changes