2004-2005 STI Fuel System

Built for your 2004-2005 Subaru WRX STI, this fuel system collection offers everything you need to enhance fuel delivery and engine response. Whether you're aiming for better power output, improved throttle response, or increased reliability, these parts are designed to meet the demands of your performance build.

Find a wide selection of fuel pumps, injectors, fuel rails, regulators, and related components that ensure consistent fuel flow and optimal combustion. Each product is chosen to support your STI’s engine efficiency and overall driving experience.

• High-performance fuel pumps and injectors
• Precision fuel pressure regulators
• Durable fuel rails and fittings
• Compatible with stock and aftermarket setups

Shop fuel system upgrades for your Subaru WRX STI at Subimods.