2015-2021 Subaru STI Aftermarket Parts

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  • JDMuscle [15 - 21 WRX/STI] Carbon Lite Series Carbon Fiber Steering Wheel - JDMuscleSteering WheelsJDM-CL-STR-WRX15LRBlack Premium Perforated LeatherRed

    In Stock

    JDMuscle Carbon Lite Series Carbon Fiber Steering Wheel

    Fits: 15-21 WRX/STI

    Only 5 left
    From $449.00
    From $449.00 $449.00
  • JDMuscle [15-17 WRX/STI] Carbon Fiber CS Style Front Bumper Lip
    Up to $150 off

    JDMuscle Carbon Fiber CS Style Front Bumper Lip

    Fits: 15-17 WRX/STI

    $349.00
    $349.00 $499.00
  • JDMuscle [18 - 21 WRX/STI] JDM Style Sequential Turn+Drl Bezel w/o Fog Light - JDMuscleLight Mounting and HardwareJDM-WRX18-13300110
    Up to $49 off
    In Stock

    JDMuscle JDM Style Sequential Turn+Drl Bezel w/o Fog Light

    Fits: 18-21 WRX/STI

    $149.00
    $149.00 $198.00
  • JDMuscle [15-21 WRX/STI] Tanso Carbon Fiber Side Mirror Covers w/o Turn Signal

    In Stock

    JDMuscle Pre-preg Carbon Fiber Side Mirror Covers w/o Turn Signal

    Fits: 15-21 WRX/STI

    Only 6 left
    $149.00
    $149.00 $149.00
  • JDMuscle [18 - 21 WRX/STI] JDM Style Sequential Turn+Drl Bezel w/ Fog Light Cut Out - JDMuscleLight Mounting and HardwareJDM-WRX18-13300108
    Up to $30 off
    In Stock

    JDMuscle JDM Style Sequential Turn+Drl Bezel w/ Fog Light Cut Out

    Fits: 18-21 WRX/STI

    $168.00
    $168.00 $198.00
  • Dmann Tuning WRX/STI OTS 'Flash and Go'

    In Stock

    Dmann Tuning WRX/STI OTS 'Flash and Go'

    $150.00
    $150.00 $150.00
  • JDMuscle [15-21 WRX/STI] Pre-preg Carbon Fiber Side Mirror w/Turn Signal Cut-Out | Gloss/Matte | Covers/Full Replacements

    JDMuscle Pre-preg Carbon Fiber Side Mirror w/Turn Signal Cut-Out | Gloss/Matte | Covers/Full Replacements

    Fits: 15-21 WRX/STI

    From $149.00
    From $149.00 $149.00
  • Grimmspeed [02-21 WRX/STI] Hella Horn Kit with Mounting Bracket + Wiring Harness | 040004 / 003399801

    Grimmspeed Hella Horn Kit with Mounting Bracket + Wiring Harness

    Fits: 02-21 WRX/STI

    $129.00
    $129.00 $129.00
  • JDMuscle [15-21 WRX/STI] CS Style Carbon Fiber Side Skirts

    JDMuscle CS Style Carbon Fiber Side Skirts

    Fits: 15-21 WRX/STI

    From $499.00
    From $499.00 $485.00
  • JDMuscle [15-21 WRX/STI] V1 Vented Carbon Fiber Fenders
    Up to $600 off

    JDMuscle V1 Vented Carbon Fiber Fenders

    Fits: 15-21 WRX/STI

    From $799.00
    From $799.00 $1,399.00
  • JDMuscle [15-17 WRX/STI] Fog Light Covers-Gloss Black/Paint Matched - JDMuscleFog LightsJDM-WRX15-FGCK7XWorld Rally Blue Pearl (K7X)

    In Stock

    JDMuscle Fog Light Covers-Gloss Black/Paint Matched

    Fits: 15-17 WRX/STI

    Only 12 left
    From $198.00
    From $198.00 $198.00
  • JDMuscle [15-21 WRX/STI] Carbon Fiber Door Handle Covers

    In Stock

    JDMuscle Pre-preg Carbon Fiber Door Handle Covers

    Fits: 15-21 WRX/STI

    Only 5 left
    $219.00
    $219.00 $219.00
  • JDMuscle [15 - 21 WRX/STI] 5 - Piece STI Style Spoiler - JDMuscleSpoilers and WingsJDM-WRX15-TS2-STID4SCrystal Black Silica Pearl (D4S)
    Up to $20 off
    In Stock

    JDMuscle 5-Piece STI Style Spoiler

    Fits: 15-21 WRX/STI

    Only 4 left
    $379.00
    $379.00 $399.00
  • JDMuscle [15-21 WRX/STI] Tanso Carbon Fiber Fuel Door Cover
    Up to $60 off
    In Stock

    JDMuscle Pre-preg Carbon Fiber Fuel Door Cover

    Fits: 15-21 WRX/STI

    Only 6 left
    From $49.00
    From $49.00 $89.00
  • JDMuscle [15-25 WRX / 15-21 STI] Carbon Fiber STI Spoiler Gurney Flap V1 - Fits 15-21 OEM or 15-25 JDMuscle Final Edition STI Wing

    JDMuscle Carbon Fiber STI Spoiler Gurney Flap V1

    Fits: 15-26 WRX, 15-21 STI

    $249.00
    $249.00 $249.00
  • JDMuscle [15 - 21 WRX/STI] Paint Matched S209 Style Fender Flare Set - JDMuscleBody KitsJDM-WRXS209.97Raw ABS2015 - 2017
    Up to $249.01 off
    In Stock

    JDMuscle Paint Matched S209 Style Fender Flare Set

    Fits: 15-21 WRX/STI

    Only 7 left
    From $849.99
    From $849.99 $799.00

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.