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      FastWRX.com
      • Engine
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      • Other Suspension
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      • Drivetrain Bushings
      • Drivetrain Fluids
      • OEM Clutch & Drivetrain
      • OEM Steering System
      • Other Drivetrain
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      • Rotors
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      • Lines & Fluid
      • Other Brakes
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      • Wheel Accessories
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      • Hoods
      • OEM Exterior
      • Other Exterior
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      • Floor Mats
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      • Lighting
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      Home / Fuel System / Page 1 of 2

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      Your Subaru fuel system includes the fuel pump, fuel injectors, and other important bits like the fuel pressure regulator and fuel rails. These parts work together to delivery the proper amount of fuel to your Subaru engine. If you increase the demand for fuel -- by running more turbo boost, for example, you may need to increase the supply of fuel. Note, though, that if you already have enough fuel capacity, adding larger fuel injectors or a larger fuel pump will NOT increase power in any way.

      Also note that the ECU is not able to sense what size fuel injectors have been installed. if you upgrade the injectors to a larger size, you have to tell the ECU using custom ECU tuning.

      AEM Drop-In Fuel Pump Upgrade 2008-2021 STI/2008-2014 WRX/2005-2009 LGT/OBXT
      AEM Drop-In Fuel Pump Upgrade 2008-2021 STI/2008-2014 WRX/2005-2009 LGT/OBXT
      ✓
      Sale

      320 320lph 50-1220 BL BP EJ25 GE GH GR GV SH Sidefeed Topfeed VASTI

      b_code, e_code, i_style

      AEM Drop-In Fuel Pump Upgrade 2008-2021 STI/2008-2014 WRX/2005-2009 LGT/OBXT $119.98 $179.00
      DeatschWerks DW65C Drop-In Fuel Pump Upgrade 2008-14 WRX / 2008-19 STI
      DeatschWerks DW65C Drop-In Fuel Pump Upgrade 2008-14 WRX / 2008-19 STI
      ✓

      BL BP EJ25 GE GH GR GV Topfeed VASTI

      b_code, e_code, i_style

      DeatschWerks DW65C Drop-In Fuel Pump Upgrade 2008-14 WRX / 2008-19 STI $165.00
      DeatschWerks 300c Drop-In Fuel Pump Upgrade BRZ/FR-S/2015-2021 WRX
      DeatschWerks 300c Drop-In Fuel Pump Upgrade BRZ/FR-S/2015-2021 WRX
      ✓

      FA20 FA20T Topfeed VAWRX ZC ZN

      b_code, e_code, i_style

      DeatschWerks 300c Drop-In Fuel Pump Upgrade BRZ/FR-S/2015-2021 WRX $189.00
      DeatschWerks DW200 Drop-In Fuel Pump Upgrade 2002-2007 WRX/STI
      DeatschWerks DW200 Drop-In Fuel Pump Upgrade 2002-2007 WRX/STI
      ✓

      EJ20 EJ25 GD GG Side feed Sidefeed Topfeed

      b_code, e_code, i_style

      DeatschWerks DW200 Drop-In Fuel Pump Upgrade 2002-2007 WRX/STI $109.00
      DeatschWerks DW300 Drop-In Fuel Pump Upgrade 2002-2007 WRX/STI, 2005-2007 LGT/OBXT
      DeatschWerks DW300 Drop-In Fuel Pump Upgrade 2002-2007 WRX/STI, 2005-2007 LGT/OBXT
      ✓

      BL BP EJ20 EJ25 GD GG SG Side feed Sidefeed Topfeed

      b_code, e_code, i_style

      DeatschWerks DW300 Drop-In Fuel Pump Upgrade 2002-2007 WRX/STI, 2005-2007 LGT/OBXT $169.00
      Cobb Tuning/Injector Dynamics Top Feed 1300cc Fuel Injectors
      Cobb Tuning/Injector Dynamics Top Feed 1300cc Fuel Injectors
      ✓

      BL BP EJ20 EJ25 GD GE GG GH GR GV SG SH Topfeed VASTI

      , b_code, e_code, i_style

      Cobb Tuning/Injector Dynamics Top Feed 1300cc Fuel Injectors $960.00
      Injector Dynamics Fuel Injectors
      Injector Dynamics Fuel Injectors
      ✓

      1050x 1300x BL BP EJ20 EJ25 GD GE GG GH GR GV ID SG SH Topfeed VASTI

      i_style, b_code, e_code, i_style

      Injector Dynamics Fuel Injectors from $546.00
      COBB Subaru Fuel Pressure Regulator Kit 2008-2021 STI
      COBB Subaru Fuel Pressure Regulator Kit 2008-2021 STI
      ✓

      EJ25 FPR GR GV Topfeed VASTI

      , b_code, e_code, i_style

      COBB Subaru Fuel Pressure Regulator Kit 2008-2021 STI $375.00
      Fuel Pump Assembly 2008-2014 WRX/STI
      Fuel Pump Assembly 2008-2014 WRX/STI
      ✓

      42021FG050 BL BP EJ25 GE GH GR GV Topfeed

      b_code, e_code, i_style

      Fuel Pump Assembly 2008-2014 WRX/STI $401.90
      In-Tank Fuel Filter 05-07 WRX and 2004-2006 WRX STI
      In-Tank Fuel Filter 05-07 WRX and 2004-2006 WRX STI
      ✓

      EJ20 EJ25 GD GG side feed Sidefeed Topfeed

      b_code, e_code, i_style

      In-Tank Fuel Filter 05-07 WRX and 2004-2006 WRX STI $101.53
      In-Tank Fuel Filter 2007 WRX STI
      In-Tank Fuel Filter 2007 WRX STI
      ✓

      EJ25 GD Topfeed

      b_code, e_code, i_style

      In-Tank Fuel Filter 2007 WRX STI $111.88
      Underhood Fuel Filter 2002-2004 WRX
      Underhood Fuel Filter 2002-2004 WRX
      ✓

      EJ20 GD GG Topfeed

      b_code, e_code, i_style

      Underhood Fuel Filter 2002-2004 WRX $42.58
      Subaru Fuel Tank Gasket 2008-2014 WRX/STI
      Subaru Fuel Tank Gasket 2008-2014 WRX/STI
      ✓

      EJ25 GE GH GR GV Side feed Topfeed

      b_code, e_code, i_style

      Subaru Fuel Tank Gasket 2008-2014 WRX/STI $23.47
      Aeromotive Top Feed Fuel Rail 2002-2014 WRX/2007-2021 STI
      Aeromotive Top Feed Fuel Rail 2002-2014 WRX/2007-2021 STI
      ✓

      EJ20 EJ25 GD GE GG GH GR GV metalmani plasticmani VASTI

      b_code, e_code, i_style

      Aeromotive Top Feed Fuel Rail 2002-2014 WRX/2007-2021 STI $183.37
      Subaru Fuel Pump Housing Gasket 2002-2007 Impreza/WRX/STI, 2003-2008 Forester XT
      Subaru Fuel Pump Housing Gasket 2002-2007 Impreza/WRX/STI, 2003-2008 Forester XT
      ✓

      42060AA040 EJ20 EJ25 GD GG SG Side feed Sidefeed Topfeed

      b_code, e_code, i_style

      Subaru Fuel Pump Housing Gasket 2002-2007 Impreza/WRX/STI, 2003-2008 Forester XT $7.00
      Top Feed Conversion Kit No TGV Housings 2004-2006 STI
      Top Feed Conversion Kit No TGV Housings 2004-2006 STI
      ✓

      EJ25 GD Side feed Sidefeed

      i_style, b_code, e_code, i_style

      Top Feed Conversion Kit No TGV Housings 2004-2006 STI $319.00
      Injector Dynamics Plug-and-Play Wiring Harness Set
      Injector Dynamics Plug-and-Play Wiring Harness Set
      ✓

      BL BP EJ20 EJ25 GD GE GG GH GR GV SG SH Topfeed VASTI

      i_style, b_code, e_code, i_style

      Injector Dynamics Plug-and-Play Wiring Harness Set $63.00
      Subaru OEM Fuel Pressure Regulator 2002-2007 WRX and STI (Top-Feed Injectors)
      Subaru OEM Fuel Pressure Regulator 2002-2007 WRX and STI (Top-Feed Injectors)
      ✓

      EJ20 EJ25 GD GG Topfeed

      b_code, e_code, i_style

      Subaru OEM Fuel Pressure Regulator 2002-2007 WRX and STI (Top-Feed Injectors) $150.00
      Subaru Fuel Line Update Kit 2002-2003 WRX
      Subaru Fuel Line Update Kit 2002-2003 WRX
      ✓

      EJ20 GD GG Topfeed

      b_code, e_code, i_style

      Subaru Fuel Line Update Kit 2002-2003 WRX $93.30
      Cobb Tuning Top Feed 1050x Fuel Injectors
      Cobb Tuning Top Feed 1050x Fuel Injectors
      ✓

      1050cc BL BP EJ20 EJ25 GD GE GG GH GR GV SG SH Topfeed VASTI

      , b_code, e_code, i_style

      Cobb Tuning Top Feed 1050x Fuel Injectors $575.00
      AEM Drop-In Fuel Pump Upgrade 2002-2007 WRX / STI
      AEM Drop-In Fuel Pump Upgrade 2002-2007 WRX / STI
      ✓
      Sale

      320 320lph 50-1220 EJ20 EJ25 GD GG Sidefeed Topfeed

      b_code, e_code, i_style

      AEM Drop-In Fuel Pump Upgrade 2002-2007 WRX / STI $122.38 $150.00
      Injector Dynamics Top Feed Conversion Kit 2004-2006 STI
      Injector Dynamics Top Feed Conversion Kit 2004-2006 STI
      ✓

      EJ25 GD metalmani Side feed Sidefeed

      b_code, e_code, i_style

      Injector Dynamics Top Feed Conversion Kit 2004-2006 STI from $745.50
      Injector Dynamics Top Feed Conversion Fuel line Kit 2004-2006 STI
      Injector Dynamics Top Feed Conversion Fuel line Kit 2004-2006 STI
      ✓

      EJ25 GD metalmani Side feed Sidefeed

      b_code, e_code, i_style

      Injector Dynamics Top Feed Conversion Fuel line Kit 2004-2006 STI $250.00
      Cobb Fuel Rail Kit 2008-2021 STI
      Cobb Fuel Rail Kit 2008-2021 STI
      ✓

      EJ25 GR GV Topfeed VASTI

      , b_code, e_code, i_style

      Cobb Fuel Rail Kit 2008-2021 STI $275.00
      Cobb Fuel Rail Line Kit 2008-2021 STI
      Cobb Fuel Rail Line Kit 2008-2021 STI
      ✓

      EJ25 GR GV VASTI

      , b_code, e_code, i_style

      Cobb Fuel Rail Line Kit 2008-2021 STI $550.00
      Cobb Fuel Pressure Regulator for Fuel Rail Kit 2008-2021 STI
      Cobb Fuel Pressure Regulator for Fuel Rail Kit 2008-2021 STI
      ✓

      EJ25 GR GV Topfeed VASTI

      , b_code, e_code, i_style

      Cobb Fuel Pressure Regulator for Fuel Rail Kit 2008-2021 STI $325.00
      Cobb Fuel System Package 2008-2018 STI
      Cobb Fuel System Package 2008-2018 STI
      ✓

      EJ25 Topfeed VASTI

      , b_code, e_code, i_style

      Cobb Fuel System Package 2008-2018 STI $1,710.00
      Cobb Tuning Fuel Rails/Line Kit Package 2008-2021 STI
      Cobb Tuning Fuel Rails/Line Kit Package 2008-2021 STI
      ✓

      EJ25 GR GV Topfeed VASTI

      , b_code, e_code, i_style

      Cobb Tuning Fuel Rails/Line Kit Package 2008-2021 STI $775.00
      Subaru Fuel Pump Cover Gasket 2002-2007 Impreza/WRX/STI, 2003-2008 Forester XT
      Subaru Fuel Pump Cover Gasket 2002-2007 Impreza/WRX/STI, 2003-2008 Forester XT
      ✓

      EJ20 EJ25 GD GG SG Side feed Sidefeed Topfeed

      b_code, e_code, i_style

      Subaru Fuel Pump Cover Gasket 2002-2007 Impreza/WRX/STI, 2003-2008 Forester XT $15.75
      Fuel Pump Assembly 2015-2021 Subaru STI
      Fuel Pump Assembly 2015-2021 Subaru STI
      ✓

      42021VA000 EJ25 Topfeed VASTI

      b_code, e_code, i_style

      Fuel Pump Assembly 2015-2021 Subaru STI $670.96
      Radium MPR Fuel Pressure Regulator
      Radium MPR Fuel Pressure Regulator
      ✓
      Sale

      20-0100-00 20-0100-01 ALL FPR

      b_code, e_code, i_style

      Radium MPR Fuel Pressure Regulator $189.95 $199.95
      Subaru Fuel Line Replacement Kit 2003-2005 Forester XT
      Subaru Fuel Line Replacement Kit 2003-2005 Forester XT
      ✓

      Side feed Sidefeed SJ

      b_code, e_code, i_style

      Subaru Fuel Line Replacement Kit 2003-2005 Forester XT from $89.00
      IAG Fuel Line Kit 2007 STI
      IAG Fuel Line Kit 2007 STI
      ✓

      EJ25 GD Topfeed

      b_code, e_code, i_style,

      IAG Fuel Line Kit 2007 STI $264.99
      IAG V3 Top Feed Fuel Rail Kit 2007 STI
      IAG V3 Top Feed Fuel Rail Kit 2007 STI
      ✓

      EJ25 GD Topfeed

      b_code, e_code, i_style,

      IAG V3 Top Feed Fuel Rail Kit 2007 STI $199.49
      IAG V3 Top Feed Fuel Rail Kit 2008-2014 WRX/2008-2021 STI
      IAG V3 Top Feed Fuel Rail Kit 2008-2014 WRX/2008-2021 STI
      ✓

      BL BM BP EJ25 GE GH GR GV SG SH Topfeed

      b_code, e_code, i_style,

      IAG V3 Top Feed Fuel Rail Kit 2008-2014 WRX/2008-2021 STI $199.49
      DeatschWerks DW300C Drop-In Fuel Pump Upgrade 2008-2014 WRX/2008-2021 STI
      DeatschWerks DW300C Drop-In Fuel Pump Upgrade 2008-2014 WRX/2008-2021 STI
      ✓

      BL BP EJ25 GE GH GR GV Side feed Sidefeed Topfeed VASTI

      b_code, e_code, i_style

      DeatschWerks DW300C Drop-In Fuel Pump Upgrade 2008-2014 WRX/2008-2021 STI $189.00
      Nostrum High Pressure Fuel Pump Upgrade 2015-2021 WRX
      Nostrum High Pressure Fuel Pump Upgrade 2015-2021 WRX
      ✓
      Sale

      DI FA20 FA20T VAWRX

      b_code, e_code, i_style

      Nostrum High Pressure Fuel Pump Upgrade 2015-2021 WRX $888.00 $988.00
      Subaru OEM Side Feed Injector 2004-2006 STI
      Subaru OEM Side Feed Injector 2004-2006 STI
      ✓

      BL BM BP EJ25 GD GE GG GH GR GV metalmani SG SH Side feed Sidefeed

      b_code, e_code, i_style

      Subaru OEM Side Feed Injector 2004-2006 STI $215.00
      Subaru OEM Direct Injector 2015-2021 WRX/2014-2018 Forester XT
      Subaru OEM Direct Injector 2015-2021 WRX/2014-2018 Forester XT
      ✓

      DI FA20T SJ VAWRX

      b_code, e_code, i_style

      Subaru OEM Direct Injector 2015-2021 WRX/2014-2018 Forester XT $243.55
      Injector Dynamics Injectors 2013+ BRZ / FR-S / 86
      Injector Dynamics Injectors 2013+ BRZ / FR-S / 86
      ✓

      1050x 1300x FA20 ID SG Topfeed ZC ZN

      i_style, b_code, e_code, i_style

      Injector Dynamics Injectors 2013+ BRZ / FR-S / 86 from $520.00
      Walbro 450LPH Fuel Pump Upgrade 2002-2007 WRX/STI
      Walbro 450LPH Fuel Pump Upgrade 2002-2007 WRX/STI
      ✓

      255lph EJ20 EJ25 GD GG Side feed Sidefeed Topfeed

      b_code, e_code, i_style

      Walbro 450LPH Fuel Pump Upgrade 2002-2007 WRX/STI $149.00
      Subaru Fuel Tank Access Gaskets 2002-2007 Impreza/WRX/STI, 2003-2008 Forester XT
      Subaru Fuel Tank Access Gaskets 2002-2007 Impreza/WRX/STI, 2003-2008 Forester XT
      ✓

      EJ20 EJ25 GD GG SG Side feed Sidefeed Topfeed

      b_code, e_code, i_style

      Subaru Fuel Tank Access Gaskets 2002-2007 Impreza/WRX/STI, 2003-2008 Forester XT from $14.60
      Subaru OEM Fuel Pressure Regulator 2004-2006 STI (Side-Feed Injectors)
      Subaru OEM Fuel Pressure Regulator 2004-2006 STI (Side-Feed Injectors)
      ✓

      EJ25 GD Side feed Sidefeed

      b_code, e_code, i_style

      Subaru OEM Fuel Pressure Regulator 2004-2006 STI (Side-Feed Injectors) $144.55
      Subaru Fuel Line Replacement Kit 2004-2006 STI
      Subaru Fuel Line Replacement Kit 2004-2006 STI
      ✓

      EJ25 GD Side feed Sidefeed

      b_code, e_code, i_style

      Subaru Fuel Line Replacement Kit 2004-2006 STI $83.39
      Subaru Fuel Line 2002-2005 WRX
      Subaru Fuel Line 2002-2005 WRX
      ✓

      GD Topfeed

      b_code, e_code, i_style

      Subaru Fuel Line 2002-2005 WRX from $11.55
      Subaru OEM Top Feed Injector 2006-2014 WRX / 2008-2021 STI
      Subaru OEM Top Feed Injector 2006-2014 WRX / 2008-2021 STI
      ✓

      EJ20 EJ25 GD GE GG GH GR GV metalmani plasticmani SH Topfeed VASTI

      b_code, e_code, i_style

      Subaru OEM Top Feed Injector 2006-2014 WRX / 2008-2021 STI $183.75
      Nostrum 2.0L Subaru FA20F Stage 1 Direct Injectors 2015-2021 WRX
      Nostrum 2.0L Subaru FA20F Stage 1 Direct Injectors 2015-2021 WRX
      ✓
      Sale

      DI FA20T VAWRX

      b_code, e_code, i_style

      Nostrum 2.0L Subaru FA20F Stage 1 Direct Injectors 2015-2021 WRX $799.00 $999.00
      Subaru OEM Quality Underhood Fuel Filter 2002-2004 WRX
      Subaru OEM Quality Underhood Fuel Filter 2002-2004 WRX
      ✓
      Sale

      EJ20 GD GG Topfeed

      b_code, e_code, i_style

      Subaru OEM Quality Underhood Fuel Filter 2002-2004 WRX $25.00 $78.99
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      Contact Information

      Mach V Motorsports
      45690 Elmwood Court, Suite 170
      Sterling, Virginia, 20166

      (571) 434-8333
      General: gofast@machv.com
      Install: service@machv.com

      Hours (Eastern time)
      Mon-Fri 9:30 am - 5:30 pm
      Sat-Sun Closed

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