DeatschWerks offers two innovative rail-injector kits for the Subaru WRX, STI and other EJ20 and EJ25 Subaru engines - an Upgrade Kit and a Conversion Kit. Both kits include injectors ranging from 750cc to 2200cc and are engineered as a system where the injector, rails, and mounting hardware all work together to integrate flawlessly into the existing OE manifold and mounting points. Both systems are fully anodized for e85 compatibility, feature large bore -6AN fittings, and include everything needed for a drop in fitment. *Subaru Top Feed Conversion Fuel Rail Kits* The DeatschWerks Conversion Kit is for applications that utilize side feed injectors, and in addition to supplying a consistent fuel supply, it allows the customer to run top feed injectors that are less expensive, tune better and are available in many more flow rate options. *Subaru Top Feed Upgrade Fuel Rail Kits* Our Upgrade Kit is for applications already utilizing top feed injectors. It eliminates the poorly designed OE rails that allow cylinder-to- cylinder pressure variances and includes injectors and rails engineered to work together and provide consistent fuel supply over a wide range of flow rates and pressures. PartNumber : dw6-102-1500 Description : Fuel Rail Kit; Top Feed Upgrade; Incl Fuel Injectors Price Group : P3 Web Site Category : Fuel Rails Web Site Group : Fuel Rail/Injector Kits Injector Size : 1500cc 2002-2005 Subaru Impreza WRX H4.1994cc Fuel Delivery::Fuel Rails 2006-2011 Subaru Impreza WRX H4.2458cc Fuel Delivery::Fuel Rails 2007-2012 Subaru Impreza WRX STI H4.2458cc Fuel Delivery::Fuel Rails 2009 Subaru Legacy GT spec.B H4.2458cc Fuel Delivery::Fuel Rails 2015-2018 Subaru WRX STI Base H4.2458cc Fuel Delivery::Fuel Rails 2015 Subaru WRX STI Launch Edition H4.2458cc Fuel Delivery::Fuel Rails 2015-2018 Subaru WRX STI Limited H4.2458cc Fuel Delivery::Fuel Rails 2016 Subaru WRX STI Series.HyperBlue H4.2458cc Fuel Delivery::Fuel Rails