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2015-2021 STI Engine

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  • Photo - Primary

    CP Piston & Ring Set for Subaru EJ257 WRX STI - Bore (99.5mm) - Size (STD) - CR (9.0) - Set of 4

    $214.75 - $214.75
    $214.75
    $214.75 - $214.75
    $214.75
      Lease to own   Pay as low as   $9/week

    CP Piston & Ring Set for Subaru EJ257 WRX STI - Bore (99.5mm) - Size (STD) - CR (9.0) - Set of 4

  • Photo - Primary

    CP Piston & Ring Set for Subaru EJ257 WRX/STI (Stroker)-Bore (100.5mm)-Size (+1.0mm)-CR (9.0)

    $214.75 - $214.75
    $214.75
    $214.75 - $214.75
    $214.75
      Lease to own   Pay as low as   $9/week

    CP Piston & Ring Set for Subaru EJ257 WRX/STI (Stroker)-Bore (100.5mm)-Size (+1.0mm)-CR (9.0)

  • Photo - Primary
    Photo - Primary

    CP Piston & Ring Set for Subaru EJ257 WRX/STI (Stroker)-Bore (99.5mm)-Size (STD)-CR (10.0)-Set of 4

    $214.75 - $214.75
    $214.75
    $214.75 - $214.75
    $214.75
      Lease to own   Pay as low as   $9/week

    CP Piston & Ring Set for Subaru EJ257 WRX/STI (Stroker)-Bore (99.5mm)-Size (STD)-CR (10.0)-Set of 4

  • Photo - Primary

    CP Piston & Ring Set for Subaru EJ257 WRX STI- Bore (99.75mm)-Size (+0.25mm)- CR (10.0) - Set of 4

    $885.15 - $885.15
    $885.15
    $885.15 - $885.15
    $885.15
      Lease to own   Pay as low as   $36/week

    CP Piston & Ring Set for Subaru EJ257 WRX STI- Bore (99.75mm)-Size (+0.25mm)- CR (10.0) - Set of 4

  • Photo - Primary

    CP Piston & Ring Set for Subaru EJ257 WRX STI- Bore (100.0mm)-Size (+0.5mm)- CR (10.0) - Set of 4

    $885.15 - $885.15
    $885.15
    $885.15 - $885.15
    $885.15
      Lease to own   Pay as low as   $36/week

    CP Piston & Ring Set for Subaru EJ257 WRX STI- Bore (100.0mm)-Size (+0.5mm)- CR (10.0) - Set of 4

  • User 1

    Carrillo Subaru EJ18/EJ20/EJ257 (WRX Sti) Pro-SA 3/8 WMC Bolt Connecting Rod - Set of 4

    $1,230.60 - $1,230.60
    $1,230.60
    $1,230.60 - $1,230.60
    $1,230.60
      Lease to own   Pay as low as   $50/week

    Carrillo Subaru EJ18/EJ20/EJ257 (WRX Sti) Pro-SA 3/8 WMC Bolt Connecting Rod - Set of 4

  • Sale Sale

    Cobb Black Lightweight Main Pulley 2002-2014 WRX / 2004-2021 STI / 2004-2013 Forester XT / 2005-2009 Legacy GT / 2005-2009 Outback XT

    $165.00
    $165.00 - $165.00
    $165.00
    $140.25
    $140.25 - $140.25
    $140.25
      Lease to own   Pay as low as   $6/week

    Cobb Black Lightweight Main Pulley 2002-2014 WRX / 2004-2021 STI / 2004-2013 Forester XT / 2005-2009 Legacy GT / 2005-2009 Outback XT The pulley co...

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  • Photo - Primary
    Sale Sale

    Cobb -6 AN Adapter Fittings Black - Set of 2 2004-2016 STi / 2006-2021 WRX

    $50.00
    $50.00 - $50.00
    $50.00
    $42.50
    $42.50 - $42.50
    $42.50
      Lease to own   Pay as low as   $2/week

    Cobb -6 AN Adapter Fittings Black - Set of 2 2004-2016 STi / 2006-2021 WRX The Subaru AN Adapter Fittings include 2 black anodized -6 AN Male to 3/...

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  • Sale Sale

    Cobb High Flow E85 Capable Fuel Pump 2008-2014 WRX / 2008-2021 STI

    $190.00
    $190.00 - $190.00
    $190.00
    $161.50
    $161.50 - $161.50
    $161.50
      Lease to own   Pay as low as   $7/week

    Cobb High Flow E85 Capable Fuel Pump 2008-2014 WRX / 2008-2021 STI  AEM's 340lph E85-Compatible High Flow In-Tank Fuel Pumps feature robust interna...

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  • Sold out

    Cobb 2in. Stainless Steep Up-Pipe 2004-2021 Subaru STI / 2006-2014 WRX / 2006-2013 Forester XT

    $275.00
    $275.00 - $275.00
    $275.00
    $233.75
    $233.75 - $233.75
    $233.75
      Lease to own   Pay as low as   $9/week

    Cobb 2in. Stainless Steep Up-Pipe 2004-2021 Subaru STI / 2006-2014 WRX / 2006-2013 Forester XT  The COBB Tuning Uppipe is constructed entirely of r...

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  • Sale Sale

    Cobb Stage 1+ Power Package w/ Blue Intake 2015-2018 Subaru STI

    $1,265.00
    $1,265.00 - $1,265.00
    $1,265.00
    $1,195.75
    $1,195.75 - $1,195.75
    $1,195.75
      Lease to own   Pay as low as   $48/week

    Subaru Stage 1+ Power Package w/ Blue Intake 2015-2018 Subaru STI This package includes the COBB SF Intake and Airbox along with the V3 Accessport!...

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  • Sale Sale

    Subaru Stage 1+ Power Package w/ Black Intake 2015-2018 Subaru STI

    $1,265.00
    $1,265.00 - $1,265.00
    $1,265.00
    $1,195.75
    $1,195.75 - $1,195.75
    $1,195.75
      Lease to own   Pay as low as   $48/week

    Subaru Stage 1+ Power Package w/ Black Intake 2015-2018 Subaru STI This package includes the COBB SF Intake and Airbox along with the V3 Accessport...

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  • Photo - Primary
    Sale Sale

    Cobb Fuel Pressure Regulator (for Fuel Rail Kit) 2008-2021 Subaru STI

    $380.00
    $380.00 - $380.00
    $380.00
    $323.00
    $323.00 - $323.00
    $323.00
      Lease to own   Pay as low as   $13/week

    Cobb 08-21 Subaru STI Fuel Pressure Regulator (for Fuel Rail Kit) The COBB Subaru 08+ STI Fuel Pressure Regulator Kit is a plug-and-play solution t...

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  • User 1
    Sale Sale

    COBB Subaru 3-Port Boost Control Solenoid Replacement Hardware Kit (hardware only) 2008-2014 WRX / 2008-2021 STI / 009-2013 FXT / 2005-2009 LGT / 2005-2009 OutbackXT

    $7.00
    $7.00 - $7.00
    $7.00
    $5.95
    $5.95 - $5.95
    $5.95
      Lease to own   Pay as low as   $0/week

    COBB Subaru 3-Port Boost Control Solenoid Replacement Hardware Kit (hardware only)

  • Photo - Primary
    Sale Sale

    Cobb Silver FMIC Core 2015-2021 Subaru WRX/STI

    $1,150.00
    $1,150.00 - $1,150.00
    $1,150.00
    $977.50
    $977.50 - $977.50
    $977.50
      Lease to own   Pay as low as   $39/week

    Cobb Silver FMIC Core 2015-2021 Subaru WRX/STI This is the COBB Tuning Front Mount Intercooler Core that is available for separate purchase for tho...

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  • Photo - Primary
    Sale Sale

    Cobb Fuel Rail Line Kit 2008-2021 Subaru STI

    $595.00
    $595.00 - $595.00
    $595.00
    $505.75
    $505.75 - $505.75
    $505.75
      Lease to own   Pay as low as   $20/week

    Cobb Fuel Rail Line Kit 2008-2021 Subaru STI  Upgrading your Subaru's fuel system is required in order to take advantage of airflow modifications s...

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  • User 1
    Photo - Primary
    Sale Sale

    Cobb 4 Bar MAP Sensor Sensor Only 2002-2007 WRX / 2004-2021 STI / 2004-2008 FXT

    $190.00
    $190.00 - $190.00
    $190.00
    $161.50
    $161.50 - $161.50
    $161.50
      Lease to own   Pay as low as   $7/week

    Cobb 4 Bar MAP Sensor Sensor Only 2002-2007 WRX / 2004-2021 STI / 2004-2008 FXT EmissionsThis part is in the process of external testing with the E...

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  • User 1
    Photo - Primary
    Sale Sale

    Cobb MAP Sensor Adapter 2002-2007 WRX / 2004-2021 STI / 2004-2008 FXT

    $65.00
    $65.00 - $65.00
    $65.00
    $55.25
    $55.25 - $55.25
    $55.25
      Lease to own   Pay as low as   $2/week

    Cobb MAP Sensor Adapter 2002-2007 WRX / 2004-2021 STI / 2004-2008 FXT This billet aluminum MAP Sensor Adapter is anodized black with a laser etched...

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  • Cobb NexGen Stage 2 to NexGen Stg 2 + Flex Fuel Power Package Upgrade 2008-2021 Subaru STI

    $980.00 - $980.00
    $980.00
    $980.00 - $980.00
    $980.00
      Lease to own   Pay as low as   $40/week

    Cobb NexGen Stage 2 to NexGen Stg 2 + Flex Fuel Power Package Upgrade 2008-2021 Subaru STI This package is intended to be added to our 50-state leg...

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  • Cobb Fuel Rail/Line Package 2008-2021 Subaru STI

    $775.00 - $775.00
    $775.00
    $775.00 - $775.00
    $775.00
      Lease to own   Pay as low as   $31/week

    Cobb Fuel Rail/Line Package 2008-2021 Subaru STI  Upgrading your Subaru's fuel system is required in order to take advantage of airflow modificatio...

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  • Cobb Wrinkle Black Radiator Shroud + Alternator Cover Package - 2015-2021 Subaru STI

    $190.00 - $190.00
    $190.00
    $190.00 - $190.00
    $190.00
      Lease to own   Pay as low as   $8/week

    Cobb Wrinkle Black Radiator Shroud + Alternator Cover Package - 2015-2021 Subaru STI A quality product with easy installation! This COBB radiator s...

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  • Cobb Fuel System Package 2008-2021 Subaru STI

    $1,825.00 - $1,825.00
    $1,825.00
    $1,825.00 - $1,825.00
    $1,825.00
      Lease to own   Pay as low as   $74/week

    Cobb Fuel System Package 2008-2021 Subaru STI The COBB Subaru Fuel Rails are constructed of 6061 Billet Aluminum and feature black anodizing with a...

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  • Sale Sale

    Cobb Stage 1+ Power Package w/ Blue Intake 2018-2021 Subaru STI

    $1,315.00
    $1,315.00 - $1,315.00
    $1,315.00
    $1,244.55
    $1,244.55 - $1,244.55
    $1,244.55
      Lease to own   Pay as low as   $50/week

    Cobb 2018-2021 Subaru STI Stage 1+ Power Package - Cobb Blue This package includes the COBB SF Intake and Airbox along with the V3 Accessport! Why?...

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  • Photo - Primary
    Sale Sale

    Cobb Wrinkle Black Alternator Cover 2008-2021 Subaru STI / 2008-2014 WRX

    $105.00
    $105.00 - $105.00
    $105.00
    $89.25
    $89.25 - $89.25
    $89.25
      Lease to own   Pay as low as   $4/week

    Cobb Wrinkle Black Alternator Cover 2008-2021 Subaru STI / 2008-2014 WRX  This alternator shroud is made from 5052-H32 Aluminum, powdercoated wrink...

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