Designed to work with the new KSTech Cold AirBox.
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.
Fits directly onto the turbo inlet (stock, silicone, APS, or AP). No MAF Elbow required.
The most direct, high-flowing short ram available.
Straight shot - no bends.
Machined velocity stack.
Reusable ultra-high-flow K&N filter mounted on aluminum velocity stack.
Works with most FMIC setups (but not the Perrin), but works best with the KSTech Cold AirBox.
Designed, Tested, and Manufactured in the USA
Absolutely positively requires engine management and tuning!
Manufacturer: Made in USA by KSTech
MPN: KST-SRI-73mm-AB
SKU: KST-SRI-73mm-AB
Unit of Measure: each
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