2015-2021 Subaru STI Parts & Accessories

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  • In Stock
    OVERTAKE [02-26 WRX, 04-21 STI] Wheel Spacers - Pair - 5mm 5x114.3 / 5x100 - JDMuscleWheel Spacers and AdaptersA11060
    OVERTAKE

    Wheel Spacers - Pair - 5mm 5x114.3 / 5x100

    Fits: 02-26 WRX, 04-21 WRX STI

    Only 12 left
    $5900
  • Up to $6.96 off
    In Stock
    StickerFab [15-21 WRX / STI] 3D Carbon Center Instrument Panel Dash Trim - JDMuscleStickers and Vinyls15WRXCDT3DBK
    StickerFab

    3D Carbon Center Instrument Panel Dash Trim

    Fits: 15-21 WRX/STI

    $2299$29.95 Save 23%

  • In Stock
    OVERTAKE TMIC Silicone Coupler Kit for Subaru STI, WRX and Forester XT
    OVERTAKE

    TMIC Silicone Coupler Kit w/ STI Style TMIC

    Fits: 04-21 STI, 02-07 WRX, 04-08 FXT

    $8800
  • Up to $0.96 off
    In Stock
    SubiSpeed Headlight Smoked Overlays - 2015 - 2021 WRX / STI - JDMuscleHeadlights15WRXSBSHLLSLight Smoke
    StickerFab

    SubiSpeed Headlight Smoked Overlays

    Fits: 15-21 WRX/STI

    $1899$19.95 Save 5%

  • In Stock
    V2 License Plate Panel Black Out Overlay - 2015 - 2020 Subaru WRX / STI - JDMuscleExterior Body15WRXLPOL3DV23D Carbon (Black)
    StickerFab

    V2 License Plate Panel Black Out Overlay

    Fits: 15-20 WRX/STI

    From $2699
  • OLM Smoked Tri Bar Fog Light Bezel (No Fog Hole) - 2018 - 2021 Subaru WRX / STI - JDMuscleOLMA.70106.2
    OLM

    Smoked Tri Bar Fog Light Bezel - No Fog Hole

    Fits: 18-21 WRX/STI

    $31500
    Pay over time · Est. $9.84/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

  • In Stock
    OLM USDM LED Front Turn Signal Housings - Clear Lens with Chrome Reflector - 2015 - 2017 Subaru WRX / STI - JDMuscleOLMOLM-15WRX-TS-CH
    OLM

    USDM LED Front Turn Signal Housings - Clear Lens with Chrome Reflector

    Fits: 15-17 WRX/STI

    Only 1 left
    $8900
  • OLM Fog Light Sequential Light Bars (requires JDM bezel) - 2018 - 2021 Subaru WRX / STI - JDMusclemotor vehicle lightingOLMA.70043.1
    OLM

    Fog Light Sequential Light Bars (Requires JDM Bezel)

    Fits: 18-21 WRX/STI

    $11500
  • OLM [15 - 21 WRX/STI] Evolution Tail Lights - Clear Lens, Black Base, White Bar | A.70032.1 - B - JDMuscleTail LightsOLMA.70032.1-B
    OLM

    Evolution Tail Lights - Clear Lens / Black Base / White Bar

    Fits: 15-21 WRX/STI

    $57900

  • In Stock
    JDMuscle [15 - 21 WRX/STI] Mirror Covers Replacements | 2PC Set, Paint Matched - JDMuscleAftermarket MirrorsJDM-WRX15-MCD4SCrystal Black Silica Pearl (D4S)
    JDMuscle

    Mirror Covers Replacements | 2PC Set, Paint Matched *Clearance*

    Fits: 15-21 WRX/STI

    Only 7 left
    $14900

  • In Stock
    Stage 1 Titanium Hardware Engine Bay Kit - Subaru WRX/STI (2015 - 2021) - JDMuscleHardware KitsSUB-009-Ti-TBCosmic Burn
    Fast Turn Fittings

    Stage 1 Titanium Hardware Engine Bay Kit - Subaru WRX/STI (2015-2021)

    $24749
    Pay over time · Est. $7.73/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
  • Up to $18.06 off
    In Stock
    KYB 08 - 21 WRX/STI Shocks & Struts Strut Mount Rear | SM5765 - JDMuscleStruts And ShockskybSM5765
    KYB

    Shocks & Struts Strut Mount Rear

    Fits: 08-21 WRX/STI

    $5500$73.06 Save 25%
  • AeroflowDynamics 2015 - 2021 Subaru Wrx/Sti Front Splitter V3 - JDMuscleFront Wind Splittersku-31328435854STI LIPNo Liner
    AeroflowDynamics

    Front Splitter V3

    Fits: 15-21 WRX/STI

    $49999
    Pay over time · Est. $15.62/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
  • IAG 08 - 14 WRX & 08 - 21 STI Air / Oil Separator | AOS | IAG - ENG - 7186NY - JDMuscleAir Oil SeparatorsIAG-ENG-7186NY
    IAG Performance

    IAG V3 Street Series Air / Oil Separator - Neon Yellow

    Fits: 08-14 WRX, 08-21 WRX STI

    $49999
    Pay over time · Est. $15.62/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

  • In Stock
    IAG 08 - 14 WRX & 08 - 21 STI Air / Oil Separator | AOS | IAG - ENG - 7186BK - JDMuscleAir Oil SeparatorsIAG-ENG-7186BK
    IAG Performance

    Air / Oil Separator

    Fits: 08-14 WRX, 08-21 WRX STI

    Only 1 left
    $49999
    Pay over time · Est. $15.62/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
  • Up to $69.98 off
    In Stock
    Extreme Online Store [15 - 21 WRX/STI] CS Package Fender Flares - JDMuscleFendersFENDER-320-BKCFCarbon Fiber2015 - 2017
    EOS

    CS Package Fender Flares

    Fits: 15-21 WRX/STI

    Only 4 left
    From $26000
    Pay over time · Est. $8.13/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

The VA-chassis STI is one of the most modified platforms in the Subaru universe, and for good reason. The EJ257 responds to upgrades, the chassis rewards better suspension, and the aftermarket support is extensive. This collection brings together STI aftermarket parts for every corner of your 2015-2021 build from top brands Grimmspeed, Perrin Performance, Cobb Tuning, and more. 

  • Engine and drivetrain: intakes, turbo upgrades, exhaust systems, intercoolers, clutches and short shifters. 
  • Suspension and handling: coilovers, springs, sway bars, bushings and chassis bracing. Wheels and brakes to put it all to the ground. 
  • Let’s not forget the cosmetic upgrades: carbon fiber, lip kits, spoilers, lighting and interior accessories from JDMuscle.

Every product listing in our STI aftermarket parts collection has verified information, so you know what fits before you order.

FAQs

Do 2015 STI aftermarket parts fit all VA-generation models?

Many do: the 2015-2021 STI shares its core platform throughout. Engine, drivetrain, and suspension parts usually cross over without issue. Exterior components are the exception, since the 2018 facelift changed several body panels. Always check the fitment info on the listing.

What should I upgrade first on my STI?

Intake, cat-back exhaust, and a professional tune give you the most noticeable gains for the money and lay a foundation for everything after. If handling is your priority, coilovers or springs plus sway bars come first instead of STI aftermarket parts.

Will these parts affect my warranty?

STI aftermarket parts can affect coverage on related components, and most 2015-2021 STIs are outside factory warranty anyway. Check with your dealer if warranty status matters to your build.

Why buy STI aftermarket parts from JDMuscle?

We're a family business run by actual Subaru people. We mod our own cars and handle our own customer service. Curated brands, competitive pricing with our price match guarantee, easy returns, and same-day shipping (Saturdays included). Free shipping over $199 to the continental 48 states.