- Designed to work with the new KSTech Cold AirBox.
- For high-HP modified Subaru WRX and STI that need a larger MAF housing.
- 83mm MAF diameter is good for up to about 550 awhp.
- Fits directly onto the turbo inlet. No MAF Elbow required.
- The most direct, highest-flowing short ram available.
- Straight shot - no bends..
- Reusable ultra-high-flow K&N filter.
- Works with most FMIC setups (but not the Perrin), but works best with the KSTech Cold AirBox.
- Does not fit with Perrin FMIC
- Designed, Tested, and Manufactured in the USA
- Absolutely positively requires engine management and tuning!