4911 products

  • Up to $140.99 off
    In Stock
    Torque Solution [02 - 14 WRX / 04 - 21 STI] Mount Package w/ Pitch Stop | TS - SU - 123.2 - JDMuscleEngine MountstqsTS-SU-123.2
    Torque Solution

    Mount Package with Pitch Stop

    Fits: 02-14 WRX, 04-21 WRX STI

    Only 8 left
    $55900$699.99 Save $140.99
    Pay over time · Est. $17.47/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 $7.39 off
    In Stock
    Whiteline 08 - 21 WRX/STI / 05 - 13 LGT / 09 - 16 FXT Rear Differential Positive Power Front Kit | KDT905 - JDMuscleTransmission and Differential BushingswhlKDT905
    Whiteline

    Rear Differential Positive Power Front Kit

    Fits: 08-21 WRX/STI, 05-13 Legacy GT, 09-16 Forester XT

    $6649$73.88 Save 10%
  • Up to $20.69 off
    In Stock
    Whiteline 08-21 WRX/STI / 10-12 LGT / 09-13 FXT / 13-21 BRZ Rear Upper Inner Control Arm Bushing Kit | W63225
    Whiteline

    Rear Upper Inner Control Arm Bushing Kit

    Fits: 08-21 WRX, 08-21 WRX STI, 10-12 Legacy GT, 09-13 Forester XT, 13-21 BRZ

    Only 8 left
    $18619$206.88 Save $20.69
  • Exedy 04 - 21 STI Stage 4 Twin Metallic Disc Clutch Kit | FM022SD - JDMuscleClutchesFM022SD
    Exedy
    $2,27665
    Pay over time · Est. $71.15/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.

  • ACL 02 - 14 WRX / 04 - 21 STI Race Main Bearing Set Standard Size Position 3 | 5M8297H - STD - JDMuscleMain Bearings5M8297H-STD
    ACL
    $12288
  • Up to $11.79 off
    In Stock
    Whiteline [15 - 21 WRX/STI] / 13 - 21 BRZ Rear Trailing Arm Front Bushing Kit | W63414 - JDMuscleAftermarket BushingswhlW63414
    Whiteline
    Only 9 left
    $10609$117.88 Save $11.79
  • Cusco [15-21 WRX/STI] Rear Member Bushing Collar
    Cusco

    Rear Member Bushing Collar

    Fits: 15-21 WRX/STI

    $24030
    Pay over time · Est. $7.51/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.

  • Cusco [08-14 WRX, 08-21 WRX STI] Aluminum Belt Cover Blue
    Cusco

    Aluminum Belt Cover Blue

    Fits: 08-14 WRX, 08-21 WRX STI

    $11790
  • Competition Clutch 04 - 21 STI Twin Disk Clutch Kit | 4M - 15030 - 1 - JDMuscleClutchescomp4M-15030-1
    Competition Clutch

    Twin Disk Clutch Kit

    Fits: 04-21 WRX STI

    $1,66249
    Pay over time · Est. $51.95/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 $35.67 off
    Eibach 15 - 21 STI Pro - Kit Lowering Springs | 7728.140 - JDMuscleLowering Springsebch7728.140
    Eibach

    Pro-Kit Lowering Springs

    Fits: 15-21 WRX STI

    $32100$356.67 Save $35.67
    Pay over time · Est. $10.03/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.

  • Torque Solution 06 - 07 WRX / 04 - 21 STI Throttle Body Spacer Silver | TS - TBS - 027 - JDMuscleThrottle BodiestqsTS-TBS-027
    Torque Solution

    Throttle Body Spacer - Silver

    Fits: 06-07 WRX, 04-21 WRX STI

    $7800
  • Turbo XS 02 - 07 WRX / 04 - 21 STI RFL Series Recirculating Bypass Valve | TXS - WS - RBV - JDMuscleBlow Off ValvesTXS-WS-RBV
    Turbo XS

    RFL Series Recirculating Bypass Valve

    Fits: 02-07 WRX, 04-21 WRX STI

    $24999
    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.

  • Mishimoto 15 - 21 STI Front Mount Intercooler Silver w/ Intake | MMINT - STI - 15AISL - JDMuscleIntercoolersMMINT-STI-15AISL
    Mishimoto
    $1,44095
    Pay over time · Est. $45.03/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.

  • Mishimoto 15 - 21 STI Front Mount Intercooler Black w/ Intake | MMINT - STI - 15AIBK - JDMuscleIntercoolersMMINT-STI-15AIBK
    Mishimoto
    $1,44095
    Pay over time · Est. $45.03/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.

  • Mishimoto [15 - 21 STI] Front Mount Intercooler Gold w/ Intake | MMINT - STI - 15AIG - JDMuscleIntercoolersMMINT-STI-15AIG
    Mishimoto
    $1,47095
    Pay over time · Est. $45.97/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.

  • Torque Solution 02 - 14 WRX / 04 - 21 STI Engine Mounts w/ Subaru OEM Mount Plates | TS - SU - 200 - PL - JDMuscleEngine MountsTS-SU-200-PL
    Torque Solution

    Engine Mounts with Subaru OEM Mount Plates

    Fits: 02-14 WRX, 04-21 WRX STI

    $36666
    Pay over time · Est. $11.46/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.