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Air and Fuel› Fuel Injection Systems and Components - Electronic

Cobb Tuning

High Flow Fuel Pump

$379.60 $190.00 Save $189.60

SKU: 315450-COBB

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Special Order
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The COBB Tuning 1050x Fuel Injectors are top-feed injectors designed to provide increased fuel flow for performance applications. They maintain stock idle and driveability with proper tuning and are compatible with all known fuels due to their corrosion-resistant internals. The injectors are sold in matched sets with a dynamic flow rate variance of 1% and include replaceable inlet filters.
Show original supplier description
The Cobb Tuning High Flow Fuel Pump is designed as a direct drop-in replacement for the factory in-tank fuel pump in select Subaru models. This upgrade is crucial for vehicles running flex fuel, high injector duty cycles, or those targeting high-power builds, as the factory pump's flow rate can become a limiting factor under increased demand. The primary role of a fuel pump is to ensure adequate fuel volume is delivered at the correct pressure to meet injector demands. When operating on E85 or high ethanol blends, vehicles require significantly more fuel volume (30-40% more) compared to gasoline due to ethanol's lower energy density. This high-flow fuel pump guarantees that the fuel system can supply the necessary volume, even under high boost and demanding fuel flow rates, thereby preventing potentially damaging fuel pressure drops that can lead to lean conditions. After installation, it's recommended to verify correct rail pressure maintenance using a fuel pressure sensor and Accessport monitoring. For builds utilizing E85 or other high ethanol blends, a high-flow fuel pump is considered a necessary upgrade when pushing power levels beyond the factory pump's capability. This fuel pump is compatible with the 2005-2009 Subaru Legacy GT and the 2005-2009 Subaru Outback XT, both equipped with the EJ255 engine. All necessary hardware and seals are included in the box.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandCobb Tuning
Part Number315450-COBB
CategoryAir and Fuel
5,000+ Trusted brands
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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