2015-2021 Subaru STI Parts & Accessories

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  • Up to $72.99 off
    In Stock
    Hawk HP+ Front Brake Pads Subaru STI 2004-2017 | HB453N.585
    Hawk Performance

    Hawk HP+ Front Brake Pads

    Fits: 04-17 WRX STI

    Only 20 left
    $16100$233.99 Save $72.99
  • Up to $54.99 off
    In Stock
    Hawk HP+ Rear Brake Pads Subaru STI 2004-2017 | HB180N.560
    Hawk Performance

    Hawk HP+ Rear Brake Pads

    Fits: 04-17 WRX STI

    Only 10 left
    $11400$168.99 Save $54.99
  • Up to $31.99 off
    In Stock
    Hawk HT-10 Racing Rear Brake Pads Subaru STI 2004-2017 | HB180S.560
    Hawk Performance

    HT-10 Rear Brake Pads

    Fits: 04-17 WRX STI

    Only 4 left
    $18800$219.99 Save $31.99
  • Up to $48.99 off
    In Stock
    Hawk HT-10 2004-17 STI Front Racing Brake Pads | HB453S.585
    Hawk Performance

    HT-10 Front Brake Pads

    Fits: 04-17 WRX STI

    Only 4 left
    $25800$306.99 Save $48.99
    Pay over time · Est. $8.06/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 $30 off
    Hawk HT-14 2004-17 STI Front Racing Brake Pads | HB453V.585
    Hawk Performance

    HT-14 Front Brake Pads

    Fits: 04-17 WRX STI

    $26999$299.99 Save $30
    Pay over time · Est. $8.44/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 $35.99 off
    In Stock
    Hawk DTC-60 Rear Racing Brake Pads Subaru STI 2004-2017 | HB180G.560
    Hawk Performance

    DTC-60 Rear Brake Pads

    Fits: 04-17 WRX STI

    Only 10 left
    $20200$237.99 Save $35.99
    Pay over time · Est. $6.31/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 $72.99 off
    In Stock
    Hawk 04-17 STI DTC-60 Front Brake Pads | HB453G.585
    Hawk Performance

    DTC-60 Front Brake Pads

    Fits: 04-17 WRX STI

    $30500$377.99 Save $72.99
    Pay over time · Est. $9.53/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 $28.99 off
    In Stock
    Hawk 04-17 STI DTC-30 Rear Brake Pads | HB180W.560
    Hawk Performance

    Hawk DTC-30 Rear Brake Pads

    Fits: 04-17 WRX STI

    Only 7 left
    $17700$205.99 Save $28.99
  • Up to $79.99 off
    In Stock
    Hawk 04-17 STI DTC-70 Front Brake Pads | HB453U.585
    Hawk Performance

    Hawk DTC-70 Front Brake Pads

    Fits: 04-17 WRX STI

    Only 5 left
    $33300$412.99 Save $79.99
    Pay over time · Est. $10.41/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 $49.99 off
    In Stock
    Hawk 04-17 STI Ceramic Rear Brake Pads | HB180Z.560
    Hawk Performance

    Performance Ceramic Rear Brake Pads

    Fits: 04-17 WRX STI

    $10600$155.99 Save $49.99
  • Up to $40.99 off
    In Stock
    Hawk Blue 9012 Front Brake Pads Subaru STI 2004-2017
    Hawk Performance

    Blue 9012 Front Brake Pads

    Fits: 04-17 Subaru WRX STI

    Only 4 left
    $22400$264.99 Save $40.99
    Pay over time · Est. $7.00/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 $45.99 off
    In Stock
    Hawk DTC-30 Front Brake Pads Subaru STI 2004-2017 | HB453W.585
    Hawk Performance

    DTC-30 Front Brake Pads

    Fits: 04-17 WRX STI

    Only 3 left
    $24500$290.99 Save $45.99
    Pay over time · Est. $7.66/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.
  • Injector Dynamics [07-09 Legacy GT, 08-14 WRX, 08-19 WRX STI] ID1050x Injectors + Deatschwerks 65C Fuel Pump Combo
    Injector Dynamics

    ID1050x Injectors + Deatschwerks 65C Fuel Pump Combo

    Fits: 07-09 Legacy GT, 08-14 WRX, 08-19 WRX STI

    $71700
    Pay over time · Est. $22.41/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.
  • Injector Dynamics [08-14 WRX, 08-19 WRX STI] ID2000 Top Feed Injectors + Adapters + Deatschwerks 300C Fuel Pump Kit
    Injector Dynamics

    ID2000 Top Feed Injectors + Adapters + Deatschwerks 300C Fuel Pump Kit

    Fits: 08-14 WRX, 08-19 WRX STI

    $1,19700
    Pay over time · Est. $37.41/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.
  • Injector Dynamics [08-14 WRX, 08-19 WRX STI] ID1700x Top Feed Injectors + Adapters + Deatschwerks 300C Fuel Pump Kit
    Injector Dynamics

    ID1700x Top Feed Injectors + Adapters + Deatschwerks 300C Fuel Pump Kit

    Fits: 08-14 WRX, 08-19 WRX STI

    $1,39700
    Pay over time · Est. $43.66/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.
  • Injector Dynamics [08-14 WRX, 08-19 WRX STI] ID1300x Top Feed Injectors + Adapters + Deatschwerks 300C Fuel Pump Kit
    Injector Dynamics

    ID1300x Top Feed Injectors + Adapters + Deatschwerks 300C Fuel Pump Kit

    Fits: 08-14 WRX, 08-19 WRX STI

    $1,13700
    Pay over time · Est. $35.53/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.