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Radium Fuel Rails Top Feed Upgrade
Subaru Models (inc. 2002-2014 Subaru WRX / 2007+ Subaru STI)
Features & Product Details
RallySport Direct carries highly engineered products designed to improve the performance and longevity of your vehicle brought to you by Radium Engineering.
This is the Radium Engineering Top Feed Fuel Rail Upgrade. This kit will allow you to upgrade to a larger variety of fuel injector sizes while having a larger internal bore size needed to support all necessary engine power requirements. These rails are CNC machined from solid 6061 aluminum materials and are black anodized and laser-etched for a high-quality surface finish. These rails are designed specifically for OEM or equivalent fitment injectors. For injector height flexibility and thermal insulation, 2 sets of machined insulating spacers are included. All injectors must use 11mm diameter upper O-rings just like the OEM Subaru injectors.