Grimmspeed Black Post MAF Hose Kit Subaru STI w/ OEM Sound Tube 2015-2017 | 125013 Wheel Offset_42mm Part #: 3C4 311 A30

Part #: 3C4 311 A30

reduced brake fade

Power Gains: Mild gains depending on supporting mods (header

conical filter design allows you to go up to 100

Grimmspeed Black Post MAF Hose Kit Subaru STI w/ OEM Sound Tube 2015-2017 | 125013 Wheel Offset_42mm Part #: 3C4 311 A30Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. GrimmSpeed now has you covered with our all new Post MAF Hose Kit which not only looks better, but fixes the performance flaws of its OE counterpart. Our Post MAF Hose construction improves flow with 2 main features: The first is the smooth inner surface, removing the pockets from the OE structural