For high-HP modified Subaru WRX and STI that need a larger MAF housing.
73mm MAF diameter is good for up to about 400-450 awhp.
Cold-Air Intake puts the filter high inside the filter:
Cooler air = more power.
High filter position keeps intake away from puddles.
Fits onto the after-MAF elbow (stock, silicone, APS). Agency Power inlet requires MAF elbow.
For those that don't have a high-flow MAF Elbow, check out our Type '2' CAI.
Reusable ultra-high-flow K&N filter. Optional Amsoil oil-free filter (see related products below).
Works with APS-style front-mount intercoolers (WBR & UR too) and all top-mount intercoolers.
Highest-quality construction:
Smooth mandrel bend.
CNC-machined MAF flange.
Beautiful welds by ASME-certified welders.
Reinforced silicone couplers.
Designed, Tested, and Manufactured in the USA
Absolutely positively requires engine management and tuning!
Manufacturer: Made in USA by KSTech
MPN: KST-CAI-73mm-1-02/07-APS
SKU: KST-CAI-73mm-1-02/07-APS
Unit of Measure: each
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