4911 products


  • In Stock
    Grimmspeed 15-17 STI Post MAF Hose Kit - Black | 125013 - JDMuscleAir Intake and MAF Hosesgrm125013
    GrimmSpeed
    Only 14 left
    $10100

  • In Stock
    Grimmspeed 15-17 STI Post MAF Hose Kit Red | 125014 - JDMuscleAir Intake and MAF Hosesgrm125014
    GrimmSpeed
    Only 14 left
    $12100
  • GrimmSpeed Radiator Shroud - Neon Green Powdercoat WRX/STI 15+| 096056 - JDMuscleRadiator Shroudsgrm096056
    GrimmSpeed

    Radiator Shroud - Neon Green

    Fits: 15-21 WRX/STI

    $12400

  • In Stock
    GrimmSpeed Front Mount Intercooler Kit - Red Subaru STI 2008-2014 | 090227 - JDMuscleIntercoolersgrm090227
    GrimmSpeed
    Only 10 left
    $2,17400
    Pay over time · Est. $67.94/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
    GrimmSpeed Front Mount Intercooler Kit - Black Subaru STI 2008-2014 | 090254 - JDMuscleIntercoolersgrm090254
    GrimmSpeed
    Only 14 left
    $2,01500
    Pay over time · Est. $62.97/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.

  • Injen 15-17 STI Cold Air Intake w/ MR Tech and Heat Shield | SP1206BLK - JDMuscleIntakesinjSP1206BLK
    Injen
    $43791
    Pay over time · Est. $13.68/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.

  • Injen 15-17 STI Cold Air Intake w/ MR Tech and Heat Shield - Polished | SP1206P - JDMuscleIntakesinjSP1206P
    Injen
    $43791
    Pay over time · Est. $13.68/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
    Injen 15-17 STI Cold Air Intake Wrinkle Red | SP1206WR - JDMuscleIntakesinjSP1206WR
    Injen
    Only 7 left
    $43791
    Pay over time · Est. $13.68/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
    HKS [15-21 WRX/STI] Legamax Premium Catback Exhaust - JDMuscleCat Back Exhaust Systemhks31021-BF001
    HKS
    $1,99000
    Pay over time · Est. $62.19/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 $424.80 off
    MXP [15-21 WRX/STI] SP Cat Back Exhaust Stainless Steel Burnt Tips | MXSPGVB - JDMuscleCat Back Exhaust SystemMXPMXSPGVB
    MXP
    $1,15020$1,575.00 Save $424.80
    Pay over time · Est. $35.94/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.

  • MILLTEK SPORT CAT-BACK EXHAUST WRX/STI 15-21 | SSXSB49 - JDMuscleCat Back Exhaust SystemMILSSXSB49
    Milltek
    $2,11900
    Pay over time · Est. $66.22/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
    aFe 15-17 STI Power Takeda Performance Oiled 5-Layer Filter Intake System | TA-4306B-R - JDMuscleIntakesafeTA-4306B-R
    aFe
    Only 1 left
    $39900
    Pay over time · Est. $12.47/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.


  • In Stock
    aFe 15-17 STI Power Takeda Performance Dried 3-Layer Filter Intake System | TA-4306B-D - JDMuscleIntakesafeTA-4306B-D
    aFe
    Only 1 left
    $41000
    Pay over time · Est. $12.81/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.

  • Up to $51.05 off
    Mishimoto Oil Cooler Kit Subaru 2006-2007 WRX / 2006-2007 STi | MMOC-WRX-06 - JDMuscleFluid CoolersmisMMOC-WRX-06
    Mishimoto

    Oil Cooler Kit - Silver

    Fits: 06-07 WRX/STI

    $51495$566.00 Save $51.05
    Pay over time · Est. $16.09/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 $51.05 off
    Mishimoto Oil Cooler Kit Black 06-07 Subaru 2006-2007 WRX / 2006-2007 STi | MMOC-WRX-06BK - JDMuscleFluid CoolersmisMMOC-WRX-06BK
    Mishimoto

    Oil Cooler Kit - Black

    Fits: 06-07 WRX/STI

    $51495$566.00 Save $51.05
    Pay over time · Est. $16.09/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.

  • MagnaFlow Converters Direct-Fit WRX 2004-2007 / STI 2.5L T 2004-2007 | 49984 - JDMuscleHigh Flow Cat Pipesmag49984
    Magnaflow

    Converters Direct-Fit

    Fits: 04-07 WRX/STI 2.5L T

    $52200
    Pay over time · Est. $16.31/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.