4911 products

  • Up to $19 off
    Rexpeed Carbon Hood Dampers | 2002-2007 WRX/STi | SU01 - JDMuscleHood DampersREX SU01
    Rexpeed

    Carbon Hood Dampers

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

    Black Friday Deal: Extra 10% Off Code REXPEED10 Ends 2/14
    $11600$135.00 Save $19
  • Up to $10.95 off
    In Stock
    Turbo XS Type H BOV Adapter kit for 02-07 WRX/STi / 08 STi | H-WRXG4
    Turbo XS

    TurboXS Type H Blow Off Valve Adapter Kit

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

    Only 8 left
    $5300$63.95 Save 17%
  • Up to $429.18 off
    In Stock
    Turbo XS 06-07 WRX/STi Front Mount Intercooler *Use Factory BOV/BOV NOT INCLUDED* | WS-FMIC-0607
    Turbo XS

    TurboXS Front Mount Intercooler Kit

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

    Only 7 left
    $1,21400$1,643.18 Save $429.18
    Pay over time · Est. $37.94/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.

  • GrimmSpeed Un-Resonated Cat-Back with Quad-Tip Muffler - WRX / STi 2011-2018 | 070048
    GrimmSpeed

    Un-Resonated Cat-Back Exhaust

    Fits: 11-14 WRX Hatchback, 08-14 WRX STI Hatchback

    $1,34900
    Pay over time · Est. $42.16/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.


  • In Stock
    GrimmSpeed EJ25 DAVCS Head Gasket Set - Subaru STi 2008-2020 | 12400X
    GrimmSpeed

    EJ25 DAVCS Head Gasket Set

    Fits: 08-20 WRX STI

    Only 16 left
    $20300
    Pay over time · Est. $6.34/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.

  • GrimmSpeed Resonated Cat-Back Exhaust - WRX/STI Hatchback 2008-2014 | 070045
    GrimmSpeed

    Resonated Cat-Back Exhaust

    Fits: 11-14 WRX Hatchback, 08-14 WRX STI Hatchback

    $1,71700
    Pay over time · Est. $53.66/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 Head Gasket Set - EJ25 SAVCS STI / WRX / LGT 2004-2014 | 12400X
    GrimmSpeed

    EJ25 SAVCS Head Gasket Set

    Fits: 06-14 WRX, 04-07 WRX STI, 05-09 Legacy GT, 04-08 Forester XT

    $20300
    Pay over time · Est. $6.34/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.

  • CSF 08-15 Subaru Impreza WRX/STI Radiator
    CSF

    Radiator

    Fits: 08-15 WRX/STI

    $31900
  • KSport Pillowball Top Mount - Single | 2005-2007 Subaru STI | PBSB120-A
    KSport

    Pillowball Top Mount - Single

    Fits: 05-07 Subaru WRX STI

    $27288
    Pay over time · Est. $8.53/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.

  • Ksport Kontrol Pro Coilovers - WRX 2015 - 2018 / STI 2008 - 2018 | CSB140-KP
    KSport
    $1,25000
    Pay over time · Est. $39.06/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.

  • Ksport Kontrol Pro Coilovers - Subaru STI 2005 - 2007 | CSB120-KP
    KSport

    Kontrol Pro Coilovers

    Fits: 05-07 WRX STI

    $1,19588
    Pay over time · Est. $37.37/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.

  • Ferrea 'Drag' Dual Valve Spring Kit | 2004-2020 Subaru STi | KT4019
    Ferrea Racing
    $1,06402
    Pay over time · Est. $33.25/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
    Ferrea 'Endurance' Dual Valve Spring Kit | 2004-2020 Subaru STi | KT4020
    Ferrea Racing
    Only 4 left
    $1,06402
    Pay over time · Est. $33.25/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 15-21 STI Front Mount Intercooler Kit Silver Core w/ Black Piping | 090237
    GrimmSpeed
    Only 9 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 15-21 STI Front Mount Intercooler Kit Black Core w/ Black Piping | 090257
    GrimmSpeed
    Only 9 left
    $2,31900
    Pay over time · Est. $72.47/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.

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.