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2015-2021 STI Engine

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  • Killer B High Flow Water Pump Housing Install Kit EJ Series

    Killer B Motorsport
    $54.00 - $54.00
    $54.00
    $54.00 - $54.00
    $54.00
      Lease to own   Pay as low as   $/week

    The EJ Series Installation Kit allows for installation of Killer B's Cast High Flow Water Pump Housing and contains hose and clamps.

  • Sold out

    Killer B Performance Subaru EJ25 Ultimate Oil Pickup Baffle Combo

    Killer B Motorsport
    $219.00 - $219.00
    $219.00
    $219.00 - $219.00
    $219.00
      Lease to own   Pay as low as   $/week

    We have all heard the horror stories. You’re just driving down the road minding your own business and then boom. Your engine blows without warning....

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  • Killer B Air/Oil Separator w/ Plumbing 2008-2014 WRX / 2008-2021 STI

    Killer B Motorsport
    $505.00 - $505.00
    $505.00
    $505.00 - $505.00
    $505.00
      Lease to own   Pay as low as   $/week

    The Killer B Motorsport Air/Oil Separator functions with a vacuum source only, the turbo inlet. This provides the vacuum source for the crankcase. ...

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  • Grimmspeed Neon Green Lightweight Battery Tie Down 2008-2014 WRX / 2008-2021 STI

    GrimmSpeed
    $39.00 - $39.00
    $39.00
    $39.00 - $39.00
    $39.00
      Lease to own   Pay as low as   $/week

    Clean up that engine bay and show your GrimmSpeed pride with our newly-designed Subaru Battery Tiedown. Laser cut, then CNC bent and powdercoated w...

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  • GrimmSpeed Black Ceramic Coated V2 Turbo Heat Shield 2002-2014 WRX / 2008-2021 STI

    GrimmSpeed
    $99.00 - $99.00
    $99.00
    $99.00 - $99.00
    $99.00
      Lease to own   Pay as low as   $/week

    GrimmSpeed 02+ WRX/STi V2 Turbo Heat Shield - Black Ceramic Coating

  •

    GrimmSpeed Red Lightweight Battery Tie Down 2008-2021 WRX / 2008-2021 STI

    GrimmSpeed
    $39.00 - $39.00
    $39.00
    $39.00 - $39.00
    $39.00
      Lease to own   Pay as low as   $/week

    GrimmSpeed 08-18 Subaru WRX/STI Lightweight Battery Tie Down - Red

  • Sale Sale

    GFB3 pc Underdrive/Non-Underdrive Pulley Kit 2008-2014 WRX / 2008-2021 STI

    Go Fast Bits
    $365.00
    $365.00 - $365.00
    $365.00
    $328.50
    $328.50 - $328.50
    $328.50
      Lease to own   Pay as low as   $/week

    It might be hard to imagine how reducing the mass of a pulley makes a car go faster, but accelerating a heavy factory pulley from say 3000-7000 RPM...

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  • Sale Sale

    GFB Mach 2 TMS Recirculating Diverter Valve 2004-2021 STI

    Go Fast Bits
    $212.00
    $212.00 - $212.00
    $212.00
    $190.80
    $190.80 - $190.80
    $190.80
      Lease to own   Pay as low as   $/week

    Blow off sound not to your taste? Want something as “sleeper” as possible? Don’t want your partner to know you’ve stuck a turbo on the daily (again...

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  • Sale Sale

    GFB 2 Piece Under-Drive Pulley Kit w/ Belts (Crank & Alternator) 2002-2021 WRX/STI

    Go Fast Bits
    $260.00
    $260.00 - $260.00
    $260.00
    $234.00
    $234.00 - $234.00
    $234.00
      Lease to own   Pay as low as   $/week

    One of the ways that you can improve the response in your engine is by adding a lightweight pulley set. Lightweight pullies have less rotational ma...

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  • Gates Racing Performance Timing Belt 2002-2014 WRX / 2004-2021 STI

    Gates
    $602.15 - $602.15
    $602.15
    $602.15 - $602.15
    $602.15
      Lease to own   Pay as low as   $/week

    Gates Racing Performance belts for Subaru WRX 2002-2014, STI 2004-2021, Legacy GT 2005-2012, and Forester XT 2004-2013 offer increased strength and...

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  • Gates Stretch Fit AC Belt 2008-2014 WRX / 2008-2021 STI

    Gates
    $26.65 - $26.65
    $26.65
    $26.65 - $26.65
    $26.65
      Lease to own   Pay as low as   $/week

    The Gates Micro-V Serpentine Belt is engineered with advanced technology to match the original equipment size, construction, and materials. This be...

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  • GrimmSpeed Neon Yellow Fender Shroud Kit 2015-2021 WRX / 2015-2021 STI

    GrimmSpeed
    $99.00 - $99.00
    $99.00
    $99.00 - $99.00
    $99.00
      Lease to own   Pay as low as   $/week

    GrimmSpeed 15+ Subaru WRX/STI Fender Shroud - Neon Green Powdercoat provides a stylish addition and is designed to be compatible with other GrimmSp...

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  • GrimmSpeed Black Radiator Shroud 2015-2021 WRX / 2015-2021 STI

    GrimmSpeed
    $89.00 - $89.00
    $89.00
    $89.00 - $89.00
    $89.00
      Lease to own   Pay as low as   $/week

    GrimmSpeed 15+ Subaru WRX/STI Radiator Shroud - Black improves cooling and adds style to engine bay.

  •

    GrimmSpeed Red Radiator Shroud 2015-2021 WRX / 2015-2021 STI

    GrimmSpeed
    $89.00 - $89.00
    $89.00
    $89.00 - $89.00
    $89.00
      Lease to own   Pay as low as   $/week

    GrimmSpeed 15+ Subaru WRX/STI Radiator Shroud - Red enhances engine bay aesthetics and increases cooling performance.

  •

    GrimmSpeed Neon Yellow Radiator Shroud 2015-2021 WRX / 2015-2021 STI

    GrimmSpeed
    $99.00 - $99.00
    $99.00
    $99.00 - $99.00
    $99.00
      Lease to own   Pay as low as   $/week

    GrimmSpeed 15+ Subaru WRX/STI Radiator Shroud - Neon Green Powdercoat adds aesthetically-pleasing style to the engine bay and enhances cooling effi...

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  • Sale Sale

    GFB TMS Respons Blow Off Valve Kit 2002-2007 WRX / 2004-2021 STI

    Go Fast Bits
    $342.00
    $342.00 - $342.00
    $342.00
    $307.80
    $307.80 - $307.80
    $307.80
      Lease to own   Pay as low as   $/week

    If cars like yours typically suffer issues such as backfiring and stalling when using a fixed-ratio atmosphere-venting BOV, the Respons can help. B...

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  • Sale Sale

    GFB Deceptor Pro Blow Off Valve Kit 2002- 2007 WRX / 2004-2021 STI

    Go Fast Bits
    $504.00
    $504.00 - $504.00
    $504.00
    $453.60
    $453.60 - $453.60
    $453.60
      Lease to own   Pay as low as   $/week

    Control the sound of your BOV "ON-THE-FLY." Go on, admit it. There are times you wish you could have that signature turbo blow off sound, but you'r...

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  • Aeromotive Single 340lph Drop-In Stealth System 2008-2021 Subaru WRX / 2008-2021 STi

    Aeromotive
    $729.95 - $729.95
    $729.95
    $729.95 - $729.95
    $729.95
      Lease to own   Pay as low as   $/week

    Aeromotive Inc. is a true high performance aftermarket manufacturer specializing in fuel delivery and fuel delivery components. Utilizing aerospace...

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  • Aeromotive Dual 340lph Drop-In Stealth System 2008-2021 Subaru WRX / 2008-2021 STi

    Aeromotive
    $889.95 - $889.95
    $889.95
    $889.95 - $889.95
    $889.95
      Lease to own   Pay as low as   $/week

    Aeromotive Inc. is a true high performance aftermarket manufacturer specializing in fuel delivery and fuel delivery components. Utilizing aerospace...

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  • Sale Sale

    Mishimoto Subaru Oil FIller Cap - Gold

    Mishimoto
    $66.27
    $66.27 - $66.27
    $66.27
    $50.95
    $50.95 - $50.95
    $50.95
      Lease to own   Pay as low as   $/week

    Upgrade the look of your Subaru engine bay with the Mishimoto Limited Edition Subaru Oil Filler Cap. Crafted from CNC-machined aluminum for superio...

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  • Killer B Motorsport Super G Oil Pan w/ High Flow Style Pick and Baffle Combo 2002-2014 WRX / 2004-2021 STI

    Killer B Motorsport
    $918.00 - $918.00
    $918.00
    $918.00 - $918.00
    $918.00
      Lease to own   Pay as low as   $/week

    The Killer B Motorsport Super G Oil Pan and High-Flow Style Pick and Baffle Combo is a must-have for any 2002-2014 WRX or 2004-2021 STI engine conf...

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  • Sold out

    Killer B Motorsport High Performance Oil Pan w/ High Flow Style Pick and Baffle Combo 2002-2014 WRX / 2004-2021 STI

    Killer B Motorsport
    $725.00 - $725.00
    $725.00
    $725.00 - $725.00
    $725.00
      Lease to own   Pay as low as   $/week

    The Killer B Motorsport V4 Performance Oil Pan is an aftermarket oil pan designed to enhance the reliability and performance of high-performance S...

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  • Gates Racing Timing Belt Kit w/ Water Pump 2005-2007 WRX / 2004-2021 STI / 2005-2009 Legacy GT

    Gates
    $409.56 - $409.56
    $409.56
    $409.56 - $409.56
    $409.56
      Lease to own   Pay as low as   $/week

    Equip your vehicle with superior performance: this Gates Racing Timing Belt Kit with Water Pump is the ideal choice for the 2005-2007 WRX, 2004-202...

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  • Gates Timing Belt Kit w/ Water Pump 2005-2007 WRX / 2004-2021 STI / 2005-2008 Legacy GT / 2004-2007 FXT

    Gates
    $318.40 - $318.40
    $318.40
    $318.40 - $318.40
    $318.40
      Lease to own   Pay as low as   $/week

    This Gates Timing Belt Kit with Water Pump contains all OE equivalent or better components for precise fit and function. This kit features superior...

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