When Nostradamus predicted that a god among men in metal fabrication would produce products for the boxer engine, we’re pretty sure he was talking about the guys at Process West.
Process West has developed billet tumbler deletes for your 2008+ WRX/STI. The smooth design makes for a great transition in airflow in your intake manifold. If you haven’t installed these yet, they make for wonderful artsy pieces on top of your office desk, or living room mantle.
Note: Must remove cap from end of Injector Dynamics and COBB Tuning fuel injectors for fitment