Subaru OEM Timing Cover LH Outer for 2008-2021 STi (13574AA120) aFe Power COBB Boost Gauge Wrap Around:

COBB Boost Gauge Wrap Around: Monitor boost past 20 PSI (~150 kPa)

This disc is designed for long life

Improved Oiling Without The Heavy Expense

so you never have to worry about replacing the filtration system

It hides away out of site behind the rear wheel well liner and includes all necessary hardware for an easy install

Subaru OEM Timing Cover LH Outer for 2008-2021 STi (13574AA120) aFe Power COBB Boost Gauge Wrap Around:Genuine OEM Subaru factory replacement engine timing cover for 2008 2021 Subaru STi. This is the LH side outer cover. 2018 STi diagram is pictured for reference. Vehicle Fitment: 2008 2021 Subaru STi Purchase Includes: (1) Cover LH vs RH? Left Hand and Right Hand is determined by driver position. From the driver seat, which side is it on? Part Number: Diagram: 13574AA120 13574 As always, please do additional research with your exact VIN to confirm