Cobb Tuning

COBB Fuel System Package | 2008-2020 Subaru STI (SUB000FSYS)

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2008-2020 Subaru STI Fuel System Package by COBB Tuning

The COBB Subaru Fuel Rails are constructed of 6061 Billet Aluminum and feature black anodizing with a laser etched COBB logo. Each rail comes with -8 AN to -6 AN adapters pre-installed. All lines are pre-assembled with double-swivel sport crimp style hose ends and ready for installation. Stainless reinforced PTFE line with black covering has a 3" minimum bend radius which allows for a straight forward installation when used as intended. With a 2500psi operating pressure and >10000psi burst pressure, these lines are incredibly robust. Also includes a COBB fuel pressure regulator.

The COBB 1050x Fuel Injectors provide increased fuel flow while maintaining stock idle and driveability with proper tuning. Corrosion resistant internals make them compatible with all known fuels, capable of extended service life with corrosive fuels. Replaceable inlet filter extends service life. AEM's 320lph E85-Compatible High Flow In-Tank Fuel Pumps feature robust internal construction that is designed to withstand the low lubricity characteristics of ethanol and methanol fuels, and are tested to work with ethanol fuels up to E100, methanol fuels up to M100 and all types of gasoline. Its compact, short body design (65mm length) with mounting hooks also makes it ideal in universal applications that have fuel tanks with tight tolerances. The 320lph E85-Compatible High Flow In-Tank fuel pump includes a wiring harness, pre filter and O-rings.

Fuel Line Features

  • Top Feed 1050X Fuel Injectors
  • Fuel Rails and Mounting Hardware
  • Fuel Lines and Fittings Kit
  • Fuel Pressure Regulator Kit
  • AEM High Flow Fuel Pump


  • 2015 - 2020 Subaru WRX STI
  • 2008 - 2014 Subaru Impreza WRX STi

What's In The Box?

  • 2 - COBB Fuel Rails
  • 1 - COBB Fuel Line Kit
  • 1 - COBB Fuel Pressure Regulator
  • 4 - COBB 1050X Injectors
  • 1 - AEM Fuel Pump
  • Necessary Hardware/Fittings
  • Warranty Information




COBB Manufacturer's Warranty

Customer Reviews

Based on 1 review
Rusty Mueller
Cobb Fuel Sysytem

PIA to install because of routing. I had the intake and tumblers out which help. Cleans up the engine bay and looks good. Cleo tuned with stock turbo 335/365. Recently installed Cobb turbo and Flex Kit. 417/500. What a difference.