The COBB cold air intake for 2008–2014 Subaru WRX STI Stage 1 to NexGen Stage 2+ Flex Fuel Power Package in black is intended to work within that upgrade path to improve airflow and support flex-fuel tuning. It integrates with staged components for reliable breathing under increased power. This intake is aimed at STI owners transitioning from Stage 1 toward a Stage 2+ flex-fuel configuration.
Cobb 08-14 Subaru STI Stg 1 to NexGen Stg 2+ Flex Fuel Power Package - Black