2021 Subaru Wrx-sti Motor Builds Upgrades

    WRX STI Upgrades by WRX STI Experts. 

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    Engine Hardware and Fittings

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    Tools and Accessories

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    Crankshafts

    Shop 2021 Subaru Wrx-sti featured products

    122 Results

    ACL Race Rod Bearings Standard Size Subaru EJ Models - 2015-2021 Subaru STI / 2000-2013 Forester / 1993-2014 Impreza

    4B8296H-STD

    ACL Race Rod Bearings Standard Size Subaru EJ Models - 2015-2021 Subaru STI / 2000-2013 Forester / 1993-2014 Impreza

    $61.33
    Manley Performance Race Master Stainless Steel Exhaust Valves - Subaru Models (inc. 2002-2005 Subaru WRX / 2004-2021 Subaru STI)

    1 In Stock

    11155-8

    Manley Performance Race Master Stainless Steel Exhaust Valves - Subaru Models (inc. 2002-2005 Subaru WRX / 2004-2021 Subaru STI)

    $201.09
    Company23 Timing Belt Guide Kit - 2015-2021 Subaru STI / 2004-2013 Forester / 2002-2014 Impreza

    520

    Company23 Timing Belt Guide Kit - 2015-2021 Subaru STI / 2004-2013 Forester / 2002-2014 Impreza

    $54.95
    IAG Performance V2 Competition Series EJ Timing Belt Tensioner - 2015-2021 Subaru STI

    IAG-ENG-5111BK

    IAG Performance V2 Competition Series EJ Timing Belt Tensioner - 2015-2021 Subaru STI

    $589.99
    Manley Performance Race Flo Stainless Steel Intake Valves - Subaru Models (inc. 2002-2005 Subaru WRX / 2004-2021 Subaru STI)

    3 In Stock

    11138-8

    Manley Performance Race Flo Stainless Steel Intake Valves - Subaru Models (inc. 2002-2005 Subaru WRX / 2004-2021 Subaru STI)

    $201.09
    IAG Performance 750 Closed Deck Includes: Case Halves - Subaru Models (Inc. 2002-2014 Subaru WRX / 2004-2021 STI / 2004-2013 Forester)

    IAG-ENG-S750

    IAG Performance 750 Closed Deck Includes: Case Halves - Subaru Models (Inc. 2002-2014 Subaru WRX / 2004-2021 STI / 2004-2013 Forester)

    $5,499.99
    Dress Up Bolts Stage 2 Titanium Hardware Engine Kit for EJ257 Engine (True Burned) - 2015-2021 Subaru STI

    SUB-017-TI-TB

    Dress Up Bolts Stage 2 Titanium Hardware Engine Kit for EJ257 Engine (True Burned) - 2015-2021 Subaru STI

    5.0(1)
    $203.93
    Company23 DOHC Timing Belt Kit - 2012-2021 Subaru STI / 2012 Legacy GT

    576

    Company23 DOHC Timing Belt Kit - 2012-2021 Subaru STI / 2012 Legacy GT

    $407.80
    Manley Performance Platinum Series Piston Set 100mm 8.5:1 - Subaru Models (inc. 2006-2014 Subaru WRX / 2004-2021 Subaru STI)

    2 In Stock

    612005C-4

    Manley Performance Platinum Series Piston Set 100mm 8.5:1 - Subaru Models (inc. 2006-2014 Subaru WRX / 2004-2021 Subaru STI)

    $699.23
    Subaru OEM Forged Salt Bath Nitrated Crankshaft - 2006-2014 Subaru WRX / 2004-2021 Subaru STI

    12200AA430

    Subaru OEM Forged Salt Bath Nitrated Crankshaft - 2006-2014 Subaru WRX / 2004-2021 Subaru STI

    $531.49
    Kelford 272-268/268 Stage 2 Performance Camshafts For EJ257 STI Dual AVCS - 2008-2021 Subaru STI

    220-C

    Kelford 272-268/268 Stage 2 Performance Camshafts For EJ257 STI Dual AVCS - 2008-2021 Subaru STI

    $949.05
    GSC Power-Division Stainless Steel Intake Valves +1mm - 2002-2014 Subaru WRX / 2004-2021 STI

    9 In Stock

    2014-8

    GSC Power-Division Stainless Steel Intake Valves +1mm - 2002-2014 Subaru WRX / 2004-2021 STI

    $149.81
    IAG 900 Closed Deck Long Block Engine w/ Stage 4 Heads & GSC S2 Cams - 2008-2021 Subaru STI

    IAG-ENG-4025WS2

    IAG 900 Closed Deck Long Block Engine w/ Stage 4 Heads & GSC S2 Cams - 2008-2021 Subaru STI

    $12,749.99
    GSC Billet Core Intake Cams - 2008-2021 Subaru STI

    7026S2

    GSC Billet Core Intake Cams - 2008-2021 Subaru STI

    $1,058.68
    Wiseco Pistons Subaru EJ20/25 Turbo130.5mm Boostline Connecting Rods - 2015-2021 Subaru STI

    SB5137-905

    Wiseco Pistons Subaru EJ20/25 Turbo130.5mm Boostline Connecting Rods - 2015-2021 Subaru STI

    $1,070.00
    PERRIN Lightweight Crank Pulley for FA/FB Engines with Large Hub - Subaru Models (Inc. 2015-2024 Subaru WRX / 2015-2021 STI / 2014-2024 Forester / 2013-2024 BRZ / 2013-2016 Scion FR-S / 2022-2024 Toyota GR86)

    3 In Stock

    PSP-ENG-104BL

    PERRIN Lightweight Crank Pulley for FA/FB Engines with Large Hub - Subaru Models (Inc. 2015-2024 Subaru WRX / 2015-2021 STI / 2014-2024 Forester / 2013-2024 BRZ / 2013-2016 Scion FR-S / 2022-2024 Toyota GR86)

    $183.60
    GSC Power-Division Stainless Steel Exhaust Valves 32mm - 2002-2014 Subaru WRX / 2004-2021 STI

    2011-8

    GSC Power-Division Stainless Steel Exhaust Valves 32mm - 2002-2014 Subaru WRX / 2004-2021 STI

    $149.11
    Brian Crower Stage 3 280 Camshafts Dual AVCS - 2015-2021 Subaru STI / 2008-2014 Impreza

    4 In Stock

    BC0624

    Brian Crower Stage 3 280 Camshafts Dual AVCS - 2015-2021 Subaru STI / 2008-2014 Impreza

    $965.00
    Brian Crower Steel Spring and Retainer Kit - 2015-2021 Subaru STI / 1998-2013 Forester / 1993-2014 Impreza

    11 In Stock

    BC0600S

    Brian Crower Steel Spring and Retainer Kit - 2015-2021 Subaru STI / 1998-2013 Forester / 1993-2014 Impreza

    $195.00
    Dress Up Bolts Titanium Hardware Trunk Kit (True Burned) - 2015-2021 Subaru WRX / STI

    SUB-019-TI-TB

    Dress Up Bolts Titanium Hardware Trunk Kit (True Burned) - 2015-2021 Subaru WRX / STI

    $59.39

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