Grimmspeed Black Post MAF Hose Kit Subaru WRX 2002-2007 / STI 2004-2007 | 125009 vendor_ISR Performance Engraved COBB Logo

Engraved COBB Logo

Part #: DS71995511415BZ

4 - Vented Dual Inlet Instructions

This gives more control of driver inputs such as roll

Grimmspeed Black Post MAF Hose Kit Subaru WRX 2002-2007 / STI 2004-2007 | 125009 vendor_ISR Performance Engraved COBB LogoSome 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