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75mm stock bore engine case halves for a sturdy foundation
more connected driving experience without harshness
so all the heat shed by that system runs through it
65% HP / +20
Nissan GT-R 2014-2018
COBB SF Airbox | Subaru WRX STI 2015-2018 fx-group-5 75mm stock bore engine caseThe SF Air Box adds the benefits of a cold air intake to the outstanding performance of the SF Intake. The factory inlet directs cold air from the front grill to the SF Airbox, which encloses the SF Intake. Hot engine bay air that robs horsepower is prevented from entering the intake system to provide consistent intake performance. This unique design also separates rainwater from the intake air, eliminating the water ingestion issues that plague in
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