Grimmspeed Stealthbox Intake (Black) - Subaru STI VA Enkei This air intake system was

This air intake system was developed to accommodate the engine’s factory emissions control devices including the mass air flow sensor

New product designed as an intermediate viscosity providing additional film strength over a 75W90

Handcrafted from 3” CNC mandrel-bent

QUALITY ASSURANCE

We saw an 11 - 12 horsepower peak gain and 32 horsepower gain throughout the mid-range over the factory intake system

Grimmspeed Stealthbox Intake (Black) - Subaru STI VA Enkei This air intake system wasIntroduction You've been asking for this bad sally for a while and it's finally here. The intake the for the 15+ STI can be thought of as a hybrid of the tube and filter used in the 08 14 WRX intake and the Stealthbox heat shield used in the 2015+ WRX intake. Small design changes were made, but the overall fit and performance is approximately the same. Quick Specs Hybrid Cold Air Short Ram Design Combining the advantages and eliminating the negatives