4911 products

  • Up to $32.84 off
    South Bend 04-21 STI Stage 2 Drag Clutch Kit | FJK1000-HD-DXD-B - JDMuscleSingle Disc ClutchessbcFJK1000-HD-DXD-B
    South Bend Clutch
    $1,06189$1,094.73 Save $32.84
    Pay over time · Est. $33.18/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.

  • OLM JDM Rear Fog Light LED Bulb WRX/STI 15-21 | -7440-WH - JDMuscleLightingOLM-7440-WH
    OLM

    JDM Rear Fog Light LED Bulb

    Fits: 15-21 WRX/STI

    $3720
  • OLM Half Carbon VA Style Rear Diffuser - WRX/STI 2015+ | 15WRXVARDCF1 - JDMuscleDiffusers and Vortex GeneratorsOLM15WRXVARDCF1
    OLM
    $92640
  • South Bend Stage 4 Extreme Clutch Kit Subaru STI 2004-21 / Legacy GT Spec B 2007-2009 | FJK1000-SS-X - JDMuscleClutchessbcFJK1000-SS-X
    South Bend Clutch

    South Bend Stage 4 Extreme Clutch Kit

    Fits: 04-21 WRX STI, 07-09 Legacy GT Spec B

    $1,34100$1,344.79 Save $3.79
    Pay over time · Est. $41.91/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 $448.23 off
    XClutch Clutch Kit Twin Carbon Blade Clutch Discs w/ Flywheel Subaru STI 2004-21 | XKSU23531-2PL - JDMuscleClutchesXCLXKSU23531-2PL
    XClutch
    $2,54000$2,988.23 Save $448.23
    Pay over time · Est. $79.38/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 $88.14 off
    XClutch Clutch Kit Stage 3 Single Carbon Blade Clutch Disc Subaru STI 2004-21 | XKSU24001-1P - JDMuscleClutchesXCLXKSU24001-1P
    XClutch
    $1,21100$1,299.14 Save $88.14
    Pay over time · Est. $37.84/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.

  • Up to $239.30 off
    XClutch Clutch Kit 9 inch Twin Carbon Blade Clutch Discs w/ Flywheel Subaru STI 2004-21 | XKSU23531-2P - JDMuscleClutchesXCLXKSU23531-2P
    XClutch
    $3,05200$3,291.30 Save $239.30
    Pay over time · Est. $95.38/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 $245.70 off
    XClutch Clutch Kit 9 in. Twin Solid Ceramic Clutch Discs w/ Flywheel Subaru STI 2004-21 | XKSU23531-2EL - JDMuscleClutchesXCLXKSU23531-2EL
    XClutch
    $1,39230$1,638.00 Save $245.70
    Pay over time · Est. $43.51/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 $135.96 off
    XClutch Clutch Kit 9in Twin Solid Ceramic Discs w/ Flywheel Subaru STI 2004-21 | XKSU23531-2E - JDMuscleClutchesXCLXKSU23531-2E
    XClutch
    $1,79600$1,931.96 Save $135.96
    Pay over time · Est. $56.13/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.

  • Up to $67.38 off
    XClutch Clutch Kit Stage 2 Single Ceramic Race Disc Subaru STI 2004-21 | XKSU24001-1R - JDMuscleClutchesXCLXKSU24001-1R
    XClutch
    $96300$1,030.38 Save $67.38
    Pay over time · Est. $30.09/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 $57.12 off
    XClutch Clutch Kit Stage 1 Sprung Organic Clutch Disc with Steel Backed Facing Subaru STI 2004-21 | XKSU24001-1T - JDMuscleClutchesXCLXKSU24001-1T
    XClutch
    $83600$893.12 Save $57.12
    Pay over time · Est. $26.13/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.

  • Up to $152.70 off
    XClutch Clutch Kit 8in Twin Solid Ceramic Discs w/ Flywheel Subaru STI 2004-21 | XKSU20521-2E - JDMuscleClutchesXCLXKSU20521-2E
    XClutch
    $1,99300$2,145.70 Save $152.70
    Pay over time · Est. $62.28/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 $186.29 off
    XClutch Clutch Kit 7.25 in. Twin Solid Ceramic Discs w/ Flywheel Subaru STI 2004-21 | XKSU18521-2E - JDMuscleClutchesXCLXKSU18521-2E
    XClutch
    $2,40200$2,588.29 Save $186.29
    Pay over time · Est. $75.06/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 $26.08 off
    XClutch [04-21 STI] Chromoly Flywheel | XFSU003C - JDMuscleFlywheelsXCLXFSU003C
    XClutch

    Chromoly Flywheel

    Fits: 04-21 WRX STI

    $45300$479.08 Save $26.08
    Pay over time · Est. $14.16/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 $187.89 off
    XClutch Clutch Kit Twin Sprung Ceramic Discs w/ Flywheel Subaru STI 2004-21 | XKSU18521-2B - JDMuscleClutchesXCLXKSU18521-2B
    XClutch
    $2,42300$2,610.89 Save $187.89
    Pay over time · Est. $75.72/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 $191.21 off
    XClutch 04-21 STI Twin Sprung Ceramic Clutch Kit | XKSU20521-2B - JDMuscleClutchesXCLXKSU20521-2B
    XClutch
    $2,46100$2,652.21 Save $191.21
    Pay over time · Est. $76.91/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.

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.