2015-2021 Subaru STI Aftermarket Parts

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  • Idoing [15-21 WRX/STI] Head Unit
    Up to $50 off
    In Stock

    Idoing Head Unit

    Fits: 15-21 WRX/STI

    From $379.00
    From $379.00 $429.00
  • JDMuscle [18-21 WRX/STI] CS Style V2 Front Bumper Grille-Paint Matched/Gloss Black
    Up to $50 off
    In Stock

    JDMuscle CS Style V2 Front Bumper Grille | Paint Matched/Gloss Black

    Fits: 18-21 WRX/STI

    From $89.00
    From $89.00 $139.00
  • JDMuscle [15-21 WRX/STI] Front Member Brace
    Up to $30 off
    In Stock

    JDMuscle Front Member Brace

    Fits: 15-21 WRX/STI

    From $119.00
    From $119.00 $149.00
  • JDMuscle [15-17 WRX/STI] CS Style Front Bumper Grille-Paint Matched/Gloss Black

    In Stock

    JDMuscle CS Style Front Bumper Grille-Paint Matched/Gloss Black

    Fits: 15-17 WRX/STI

    Only 2 left
    From $168.00
    From $168.00 $168.00
  • JDMuscle Tanso Carbon Fiber Subaru Emblem Covers Front & Back, Red/White/Blue [22 - 25 WRX, 15 - 21 WRX/STI, 18 - 23 Crosstrek, 17 - 23 Impreza] - JDMuscleOrnaments and EmblemsJDM-WRX22-SEDCFRDRed
    Up to $10 off
    In Stock

    JDMuscle Pre-preg Carbon Fiber Subaru Emblem Covers Front & Back, Red/White/Blue

    Fits: 22-26 WRX, 15-21 WRX/STI, 18-23 Crosstrek, 17-23 Impreza

    $89.00
    $89.00 $99.00
  • JDMuscle [15 - 25 WRX, 15 - 21 STI] Latest Version F1 Light Plug and Plug Harness - JDMuscleLight Mounting and HardwareJDM-WRX22-F1-PNPT2022 - 2025

    In Stock

    JDMuscle V1.5/V2 F1 Light Plug and Plug Harness

    Fits: 15-26 WRX/STI

    $15.00
    $15.00 $9.99
  • JDMuscle [18-21 WRX/STI] Fog Light Covers - Paint Matched / Gloss Black

    In Stock

    JDMuscle Fog Light Covers - Paint Matched / Gloss Black

    Fits: 18-21-WRX/STI

    Only 7 left
    $239.00
    $239.00 $239.00
  • JDMuscle [18-21 WRX/STI] V2 Carbon Fiber Grille | Twill / Honey Comb

    JDMuscle V2 Carbon Fiber Grille | Twill / Honey Comb

    Fits: 18-21 WRX/STI

    $429.00
    $429.00 $429.00
  • JDMuscle [18-21 WRX/STI] CS Style Carbon Fiber Front Bumper Lip
    Up to $250 off
    In Stock

    JDMuscle CS Style Carbon Fiber Front Bumper Lip

    Fits: 18-21 WRX/STI

    Only 1 left
    From $399.00
    From $399.00 $549.00
  • JDMuscle [15-21 WRX/STI] Paint Matched JDM Style Rear Splash Guards
    Up to $20 off
    In Stock

    JDMuscle Paint Matched JDM Style Rear Splash Guards

    Fits: 15-21 WRX/STI

    From $189.00
    From $189.00 $209.00
  • JDMuscle [15-21 WRX/STI] Prepreg Carbon Fiber Hood Scoop V1

    JDMuscle Prepreg Carbon Fiber Hood Scoop V1

    Fits: 15-21 WRX/STI

    $399.00
    $399.00 $399.00
  • JDMuscle Wireless Carplay Adapter [Universal, Incl. 22 - 25 WRX / 19 - 21 WRX/STI] - JDMuscleCarPlay AdaptorJDM-CARPLAY
    Up to $30 off
    In Stock

    JDMuscle Wireless Carplay Adapter

    Fits: Universal, Incl. 22-26 WRX / 19-21 WRX/STI

    Only 7 left
    $49.00
    $49.00 $79.00
  • JDMuscle [15 - 21 WRX/STI] 5 - Piece STI Style Spoiler - JDMuscleSpoilers and WingsJDM-WRX15-TS2-STID4SCrystal Black Silica Pearl (D4S)
    Up to $50 off
    In Stock

    JDMuscle 3-Piece STI Style Spoiler

    Fits: 15-21 WRX/STI

    $449.00
    $449.00 $499.00
  • Spec-D [15-21 WRX/STI] Sequential LED Tail Lights

    Spec-D Sequential LED Tail Lights

    Fits: 15-21 WRX/STI

    From $427.00
    From $427.00 $427.00
  • JDMuscle [15-21 WRX/STI] Carbon Fiber Hood V2 w/ Heat Extract
    Up to $200 off

    JDMuscle Carbon Fiber Hood V2 w/ Heat Extract

    Fits: 15-21 WRX/STI

    From $1,399.00
    From $1,399.00 $1,499.00
  • JDMuscle [15-21 WRX/STI] Carbon Fiber License Plate Backing | Carbon Fiber Forged Carbon Fiber
    Up to $20 off

    JDMuscle Carbon Fiber License Plate Backing | Carbon Fiber Forged Carbon Fiber

    Fits: 15-21 WRX/STI

    From $179.00
    From $179.00 $199.00

The 2015-2021 Subaru STI represents the final evolution of Subaru’s legendary EJ-powered performance sedan. Combining rally-bred engineering, aggressive styling, and exceptional tuning potential, the VA-generation STI remains one of the most sought-after platforms among enthusiasts. We offer a massive selection of Subaru STI aftermarket parts designed to help you maximize performance, improve handling, and create a build that reflects your vision.

Looking for premium Subaru STI parts? We have a carefully curated catalog that features products from the industry’s most trusted manufacturers. Our collection of STI parts makes it easy to transform your STI into something truly unique.

FAQs

Which Subaru STI aftermarket parts provide the biggest benefits?

When it's time to get serious, turbocharger upgrades, fuel system components, intercoolers, engine management solutions, and supporting bolt-ons are where the real power lives. Pair them with a proper tune and your STI becomes a completely different machine.

What are the ideal Subaru STI parts for beginners?

If you're just getting started, you're in the right place. Catback exhaust systems, intakes, lowering springs, wheels, shift knobs, and aero accessories are the most popular entry points for a reason. They deliver noticeable results in appearance and driving feel without requiring you to pop the hood.

Which Subaru STI accessories are actually worth adding?

More than you'd think. Mud flaps, carbon fiber trim, upgraded lighting, shift knobs, floor mats, and exterior aero components are the kind of Subaru STI aftermarket parts that quietly elevate the whole ownership experience: personalizing the car while making everyday use more enjoyable.

Why buy Subaru STI aftermarket parts from JDMuscle?

Hundreds of trusted performance brands, competitive pricing, expert customer support, and fast shipping all in one place. The JDMuscle Garage feature lets you explore real customer builds for inspiration before you buy, so you can build with confidence.