4910 products

  • Up to $89 off
    In Stock
    Tomei Expreme 06-14 WRX / 04-21 STI Twin Scroll Exhaust Manifold Large Piping | TB6010-SB01A
    Tomei
    Only 5 left
    $80100$890.00 Save $89
    Pay over time · Est. $25.03/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.

  • Up to $19 off
    In Stock
    Tomei Adjustable Cam Gear Exhaust LH Subaru Single AVCS Motors STI 2004-2007 / WRX 2006-2014
  • Up to $12 off
    In Stock
    Tomei Head Gasket 1.2mm STI 2004-2020 / WRX 2006-2014 Subaru 2.5L Turbo Models | Pair
    Tomei

    Head Gasket 1.2mm - Subaru 2.5L Turbo (Pair)

    Fits: 04-20 WRX STI, 06-14 WRX

    Only 5 left
    $10800$120.00 Save $12
  • Up to $158 off
    In Stock
    Tomei 02-07 WRX / 04-21 STI ARMS MX7760 Turbo | TB401A-SB01A
    Tomei

    ARMS MX7760 Turbo

    Fits: 02-07 WRX, 04-21 STI

    Only 3 left
    $1,42200$1,580.00 Save $158
    Pay over time · Est. $44.44/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 $158 off
    In Stock
    Tomei ARMS MX8265 Turbocharger WRX 2002-2007 / STI 2004-2020
    Tomei

    ARMS MX8265 Turbocharger

    Fits: 02-14 WRX, 04-21 STI

    Only 2 left
    $1,42200$1,580.00 Save $158
    Pay over time · Est. $44.44/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.

  • Nameless Performance [WRX 11-14, STI 08-14] Track Pipe and No Muffler | SUTP08WRXHATCH-0MU-0TIP
    Nameless Performance

    Track Pipe and No Muffler

    Fits: 11-14 WRX, 08-14 STI

    $25000
    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.

  • Process West Cold Air Intake 72mm Big MAF Subaru Impreza WRX 2002-2007 / WRX STI 2004-2007 | PWCAI05
    Process West
    $40400
    Pay over time · Est. $12.63/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.

  • Process West Cold Air Intake Subaru Impreza WRX 2002-2007 / WRX STI 2004-2007 / Forester XT 2004-2007 | PWCAI03
    Process West
    $33010
    Pay over time · Est. $10.32/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.

  • Process West 02-14 WRX / 04-21 STI Engine Pulley Garnish Red | PWED02R
    Process West

    Engine Pulley Garnish Red

    Fits: 02-14 WRX, 04-21 STI

    $7865
  • Process West 15-20 STI Front Mount Intercooler Kit Black | PWFMIC08B
    Process West
    $1,66200
    Pay over time · Est. $51.94/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.

  • Process West Top Mount Intercooler Black WRX 2002-2007 / STI 2004-2007
    Process West
    $76600
    Pay over time · Est. $23.94/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.

  • Process West Double W460 Pump Anti-Surge Fuel System WRX/STI 2008-2014
    Process West
    $1,77600
    Pay over time · Est. $55.50/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.

  • Process West 02-14 WRX / 07-21 STI Billet Fuel Rails Black | PRW-PWFR01B
    Process West

    Billet Fuel Rails Black

    Fits: 02-14 WRX, 07-21 STI

    $36648
    Pay over time · Est. $11.45/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.

  • Process West 02-14 WRX / 07-21 STI Fuel Rails | PWFR01
    Process West

    Fuel Rails

    Fits: 02-14 WRX, 07-21 STI

    $34200
    Pay over time · Est. $10.69/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.

  • Process West Single W460 Anti-Surge Fuel System WRX/STI 2008-2014
    Process West
    $1,39700
    Pay over time · Est. $43.66/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.

  • Process West [08-14 STI] Front Mount Intercooler Kit Black | PWFMIC03B
    Process West
    $1,66200
    Pay over time · Est. $51.94/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.

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.