4911 products

  • Up to $8.05 off
    Mishimoto [02-07 WRX, 04-07 STI] Black Silicone 76mm Air Box Hose | MMHOSE-WRX-AM7BK
    Mishimoto

    Black Silicone 76mm Airbox Hose

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

    $8195$90.00 Save 9%
  • Up to $8 off
    HPS [02 - 07 WRX, 04 - 07 STI] Performance Cold Air Intake w/ Heatshield - Red | 827 - 606R - JDMuscleIntakesHPS827-606R
    HPS Performance
    $24600$254.00 Save $8
    Pay over time · Est. $7.69/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
    IAG Performance [02 - 07 WRX, 04 - 07 STI, 04 - 08 FXT] BIG MAF Intake | IAG - AFD - 1100 - JDMuscleIntakesIAG-AFD-1100
    IAG Performance

    IAG Big MAF Intake

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

    Only 1 left
    $27499
    Pay over time · Est. $8.59/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 [02 - 07 WRX, 04 - 07 STI, 04 - 08 FXT] Super Power Flow Intake System | 70019 - AF103 - JDMuscleIntakeshks70019-AF103
    HKS

    Super Power Flow

    Fits: 02-07 WRX Sedan, 04-07 WRX STI, 04-08 Forester XT

    Only 4 left
    $22000
    Pay over time · Est. $6.88/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 $8 off
    HPS Performance [02 - 07 WRX, 04 - 07 STI] Performance Short Ram Air Intake w/ Heat Shield - Black | 827 - 606WB - JDMuscleIntakesHPS827-606WB
    HPS Performance
    $24600$254.00 Save $8
    Pay over time · Est. $7.69/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 [02 - 07 WRX, 04 - 07 STI] MagnumFLOW Air Filter | 31 - 10010 - JDMuscleHigh Flow Replacement Panel Filtersafe31-10010
    aFe

    MagnumFLOW Air Filter

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

    Only 4 left
    $7600
  • Up to $2.99 off
    In Stock
    Whiteline 02 - 07 WRX Sedan and Wagon Rear / 03 - 07 Impreza Non - Turbo Rear / 04 - 07 STI Sway Bar Mount - Bushing Kit 24mm - JDMuscleSway Bar MountsW0406-24
    Whiteline

    Rear Sway Bar Mount Bushing Kit 24mm

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

    Only 10 left
    $2689$29.88 Save 10%
  • Up to $50 off
    In Stock
    Noble OE STI Style Spoiler 15 - 21 WRX / STI - Lightning Red - JDMuscleSpoilers and Wingsnol15WRX.SPL.STI.C7P
    Noble Performance
    Only 11 left
    $44999$499.99 Save $50
    Pay over time · Est. $14.06/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 $2.99 off
    In Stock
    Whiteline 02 - 07 WRX Sedan and Wagon / 03 - 07 Impreza Non - Turbo / 04 - 07 STi 24mm Sway Bar Mount - Bushing Kit - JDMuscleSway Bar MountsW0405-24
    Whiteline

    Front Sway Bar Bushing Kit 24mm

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

    Only 4 left
    $2689$29.88 Save 10%
  • Up to $52 off
    Cusco [08-14 WRX STI, 15-21 WRX STI] Front Upper Pillowball Mount Set Camber/Caster Adjustable
    Cusco
    $46800$520.00 Save $52
    Pay over time · Est. $14.63/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
    Air Lift Performance [15 - 21 WRX/STI] Coilover Kit - JDMuscleCoilovers79001
    Air Lift Performance

    Coilover Kit

    Fits: 15-21 WRX/STI

    Only 4 left
    $1,14999
    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.

  • Remark 15 - 21 WRX/STI (VA) R1 Spec Single - Exit Stainless Catback Exhaust (Resonated) - JDMuscleCat Back Exhaust SystemRK-C1076S-01C
    Remark
    $1,09500
    Pay over time · Est. $34.22/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.

  • Up to $106.78 off
    In Stock
    DBA 12 - 21 BRZ / 01 - 15 WRX STI Rear Race Performance Brake Pads - JDMuscleBrake PadsDB1521RP
    DBA

    Race Performance Rear Brake Pads

    Fits: 12-21 BRZ, 01-15 WRX STI

    Only 2 left
    $18000$286.78 Save $106.78
  • GrimmSpeed Intercooler Core - 2015 - 2021 WRX / STI | 090235 - JDMuscleIntercoolersgrm090235
    GrimmSpeed

    Intercooler Core

    Fits: 15-21 WRX/STI

    $1,17100
    Pay over time · Est. $36.59/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 $117.80 off
    Perrin Performance [02 - 14 Subaru Impreza, 15 - 21 WRX, STI] Oil Cooler Tuner Kit - JDMuscleOil Cooler / Transmission CoolerperPSP-OIL-125
    Perrin Performance

    Perrin Oil Cooler Tuner Kit

    Fits: 02-14 Impreza, 15-21 WRX/STI

    Black Friday Deal: 20% Off Ends 1/4
    $47120$589.00 Save $117.80
    Pay over time · Est. $14.73/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.