Grimmspeed Black Post MAF Hose Kit Subaru WRX 2002-2007 / STI 2004-2007 | 125009 vendor_ISR Performance 4 - Vented Dual Inlet

4 - Vented Dual Inlet Instructions

Part #: DS71995511415BZ

100% built in house and made in the USA

Premium Fuel Pressure Sender

Part #: D2R-D-SC-06-ART

Grimmspeed Black Post MAF Hose Kit Subaru WRX 2002-2007 / STI 2004-2007 | 125009 vendor_ISR Performance 4 - Vented Dual InletSome 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