4911 products


  • In Stock
    [04 - 21 STI, 02 - 14 WRX, 04 - 13 Forester XT, 05 - 09 Outback XT, 05 - 12 Legacy GT, 03 - 06 Baja Turbo] 5w40 Oil Change Package | Motul 8100 X - Cess Gen2 5 Liter - JDMuscleOil Change PackageMOT-STIPKG-5w40
    Motul

    Oil Change Package 8100 X-Cess Gen2 5W-40 5 Liter

    Fits: 04-21 WRX STI, 02-14 WRX, 04-13 Forester XT, 05-09 Outback XT, 05-12 Legacy GT, 03-06 Baja Turbo

    Only 11 left
    $8900

  • In Stock
    JDMuscle [15 - 21 WRX/STI] Carbon Fiber Exhaust Trim Cover / Exhaust Hole Delete - JDMuscleLeft ExitRight Exit
    JDMuscle
    Only 17 left
    $25000
    Pay over time · Est. $7.81/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
    AeroflowDynamics 2011 - 2014 WRX/STI Rear Diffuser (Sedan V1) - JDMuscleDiffusers and Vortex Generatorssku-25144931331
    AeroflowDynamics

    Rear Diffuser V1

    Fits: 11-14 WRX/STI Sedan

    Only 1 left
    $1,04000
    Pay over time · Est. $32.50/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.

  • AeroflowDynamics 2015 - 2021 Subaru Wrx/Sti Side Skirt Extension V6 - JDMuscleSide Skirtssku-43618755444952No Liner
    AeroflowDynamics

    Side Skirt Extension V6

    Fits: 15-21 WRX/STI

    $29999
    Pay over time · Est. $9.37/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.

  • AeroflowDynamics 2015 - 2021 Subaru WEX/STI Side Skirt Extension V7 - JDMuscleSide SkirtsAFD-VA-AL-SS-EXT-V7No Liner
    AeroflowDynamics

    Side Skirt Extension V7

    Fits: 15-21 WRX/STI

    $29999
    Pay over time · Est. $9.37/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 $10 off
    AeroflowDynamics 15 - 22 WRX/STI License Plate Led - JDMuscleLED Lighting22WRX-LED-PLT
    AeroflowDynamics

    License Plate LED

    Fits: 15-22 WRX/STI

    $3999$49.99 Save 20%
  • AeroflowDynamics 2015 - 2017 Subaru Wrx/Sti Canards V4 - JDMuscleCanardssku-16247989635
    AeroflowDynamics

    Canards V4

    Fits: 15-17 WRX/STI

    $25199
    Pay over time · Est. $7.87/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.

  • AeroflowDynamics 2015 - 2021 Subaru Wrx/Sti Front Winglets V5 - JDMuscleFront Wind Splittersku-19674919141449STI LIP
    AeroflowDynamics

    Front Winglets V5

    Fits: 15-21 WRX/STI

    $25999
    Pay over time · Est. $8.12/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.

  • AeroflowDynamics 2006 - 2007 Subaru Wrx/Sti Canards V4 - JDMuscleCanardssku-2075569291288
    AeroflowDynamics

    Canards V4

    Fits: 06-07 WRX/STI

    $25199
    Pay over time · Est. $7.87/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
    AeroflowDynamics 2006 - 2007 Subaru Wrx/Sti Front Bumper Canards V2 - JDMuscleCanardssku-4420716739
    AeroflowDynamics

    Front Bumper Canards V2

    Fits: 06-07 WRX/STI

    Only 1 left
    $26999
    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.


  • In Stock
    AeroflowDynamics 2002 - 2007 Subaru Wrx/Sti Side Skirt Extension V1 - JDMuscleSide SkirtsAFD-02WRX-AL-SS-EXT-V1
    AeroflowDynamics

    Side Skirt Extension V1

    Fits: 02-07 WRX/STI

    Only 2 left
    $19799
  • AeroflowDynamics 2015 - 2020 Subaru Wrx/Sti Side Skirt Extension (Carbon Fiber) - JDMuscleSide Skirtssku-35470859662
    AeroflowDynamics
    $54999
  • AeroflowDynamics 2008 - 2014 Subaru Wrx/Sti Carbon Fiber Front Splitter - JDMuscleFront Wind Splittersku-5616910275STI LIP
    AeroflowDynamics

    Carbon Fiber Front Splitter

    Fits: 08-14 WRX/STI

    $73535
  • AeroflowDynamics 2008 - 2014 Subaru Wrx/Sti Canards V2 - JDMuscleCanardssku-4420714435
    AeroflowDynamics

    Canards V2

    Fits: 08-14 WRX/STI

    $16200
  • AeroflowDynamics 2008 - 2014 Subaru Wrx/Sti Canards V1 - JDMuscleCanardssku-4420714371
    AeroflowDynamics

    Canards V1

    Fits: 08-14 WRX/STI

    $16200
  • AeroflowDynamics 2011 - 2014 Subaru Wrx/Sti Canards V4 - JDMuscleCanardssku-6322766019
    AeroflowDynamics

    Canards V4

    Fits: 11-14 WRX/STI

    $21239

Subaru WRX STI Performance Parts

We know that the Subaru WRX and STI were built to be customized by automotive enthusiasts like you. That's why our winning team of Subaru WRX and STI experts here at JDMuscle offer a long list of the finest and most effective Subaru STI and WRX parts available on the market. Make your Subaru WRX or STI look, feel, and perform according to your unique tastes as well as your high expectations with top quality aftermarket performance parts. Your vehicle should be as unique as its driver. A stock automobile just doesn't cut it. With JDmuscle, customizing your car with high quality Subaru STI parts has never been easier.

 

Superior Craftsmanship for Every Part

You'll enjoy outstanding craftsmanship and attention to detail evident in every aspect of our beautiful Subaru STI parts! Boost the power, performance, and styling of your Subaru with high-quality performance parts from J Muscle, including WRX STI parts and accessories. Subaru has a focus on superior driving performance, and the aftermarket Subaru STI parts available in our inventory can take you and your vehicle to the next level.

Our Subaru STI Parts & Accessories Are the Best on the Market

Your Subaru is a performance machine, but the right custom Subaru STI parts can make it even better. Whether you opt for exhaust components, ignition components, engine management upgrades, or other enhancements, JDMuscle has the Subaru aftermarket parts you are looking for.

JDMuscle is the leader when it comes to high quality, well tested, and easy to install Subaru STI parts and performance accessories. Get the most out of your vehicle with the finest aftermarket WRX STI parts available, only through JDMuscle. Get in touch today to learn more. Our team of Subaru experts is standing by to answer all of your important questions.

Welcome to JDMuscle, your source for the best Subaru WRX STI performance parts and accessories! If you're looking to boost your Subaru's power and enhance its visual aesthetics, you've come to the right place.

 

Premium WRX & STI Aftermarket Parts

We carry a wide selection of premium aftermarket parts to take your WRX or STI to the next level. Our inventory includes everything from intakes and turbos to improve performance, to lips and wings for an aggressive new look. 

We only carry parts from top brands known for quality and innovation like APR, Cobb, ETS, Invidia, and more. We've carefully curated our catalog to offer you the highest quality components on the market.

 

Improve Your Car's Power & Visual Aesthetics

With our performance upgrades, you can increase your Subaru's horsepower, torque, and throttle response for better acceleration. Feel the rush as your WRX or STI surges forward when you step on the gas. 

We also offer stylish exterior add-ons like side skirts, diffusers, and Subaru WRX & STI front lips to give your ride a customized, head-turning look. Whether you're looking to improve performance or aesthetics, we've got you covered.

Upgrade Your Braking System

Ensuring your Subaru can stop as well as it can go is crucial. We stock 2015-2021 Subaru STI brakes, featuring cross-drilled, slotted, and vented rotors for superior stopping power. Our rotors are crafted from premium materials to withstand repeated heat cycles. Combine them with performance brake pads for shorter stopping distances. You'll have the peace of mind of knowing your car will handle and stop safely.

Enhance The Sound of Your Ride

A throaty exhaust note adds to the thrill of acceleration. We carry top exhaust brands like Invidia, ETS, and Tomei exhausts for 2015-2021 Subaru STI. Get deeper, louder sounds with cat-backs, axle-backs, and headers. Hear your engine truly come alive!

Our user-friendly website makes it easy to find parts for your specific Subaru model. We offer quick shipping across the USA and excellent customer service. Take your WRX or STI to new heights with JDMuscle performance parts! Contact us today.