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The COBB AP V3 tuning package listed for Subaru STI models provides a stage 1 calibration and intake upgrade option intended for 2015–2021 Subaru applications, including the Type RA 2018. It focuses on accessible power and drivability improvements appropriate for street use. As a vehicle-specific calibration solution, it is aimed at owners seeking controlled tuning changes without extensive hardware modification.
Cobb 15-21 Subaru STI (Type RA 2018) Stage 1 + Redline Carbon Fiber Power Package
