
The COBB high‑flow air filter included in the Subaru 2002–2005 WRX Stage 1 Power Package with the V3 access port is a drop‑in element specified for that tuning kit. Provided as part of the Stage 1 package, the filter is intended to work with COBB’s V3 calibration and hardware set, delivering the filtration component matched to that Stage 1 configuration for supported Subaru models.
Subaru 02-05 WRX Stage 1 Power Package w/V3