2015-2021 Subaru WRX STI Aftermarket Parts

Up to $23 off

Rexpeed
Rear Fog Light - Clear Lens with Red Base
Fits: 22-26 WRX, 15-21 WRX/STI

Black Friday Deal: Extra 10% Off Code REXPEED10 Ends 2/14
$12700~~$150.00~~ Save $23
Up to $23 off

Rexpeed
Rear Fog Light - Clear Lens with Chrome Base
Fits: 22-26 WRX, 15-21 WRX/STI

Black Friday Deal: Extra 10% Off Code REXPEED10 Ends 2/14
$12700~~$150.00~~ Save $23
In Stock

COBB Tuning
NexGen Stage 1+ to Stage 2+ Flex Fuel Power Package Upgrade
Fits: 08-21 WRX STI, 18 Type RA

Only 13 left

$3,23000

Pay over time · Est. $100.94/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 (Raw Aluminum / Red)
Fits: 15-21 WRX STI

Only 1 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.
COBB Tuning
4 Bar MAP Sensor - Sensor Only
Fits: 02-14 WRX, 04-21 STI, 05-08 Forester XT

$19700
Up to $10.89 off

In Stock

3D MAXpider
All-Weather Floor Liner Set (Front & Rear) - Black
Fits: 15-21 WRX/STI

Only 4 left

$20499~~$215.88~~ Save $10.89

Pay over time · Est. $6.41/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 OEM
Battery Tie Down - Blue
Fits: 21 WRX STI, 21-25 WRX, 21-23 Crosstrek/Impreza

$8395
Up to $99.98 off

In Stock

DBA
Street Series Slotted Front Rotor - w/ 19in Wheels & 6 Piston Brembo Caliper
Fits: 18-21 WRX STI

$16700~~$266.98~~ Save $99.98
In Stock

IAG Performance
IAG Timing Belt Kit with Red Racing Belt, Timing Guide, Adjustable Idlers & Tensioner
Fits: 02-14 WRX, 04-21 WRX STI, 05-12 LGT, 04-13 FXT

Only 1 left

$69999

Pay over time · Est. $21.87/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
IAG 550 Street Cylinder Heads Package
Fits: 02-14 WRX, 04-21 WRX STI, 05-09 LGT, 04-13 FXT

Only 12 left

From $3,39999

Pay over time · Est. $106.25/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

IAG Performance
IAG 750 EJ25 Closed Deck Case - 11mm H.S.M.
Fits: WRX, WRX STI, FXT, LGT

Only 2 left

From $2,74999

Pay over time · Est. $85.94/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.
PowerStop
Power Stop Front & Rear Z17 Coated Brake Kit
Fits: 18-21 WRX STI

$49844

Pay over time · Est. $15.58/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 OEM
Engine Block Heater
Fits: 15-21 WRX STI, 17-21 WRX

$19995
Up to $3.54 off

In Stock

Torque Solution
Solid Shifter Bushings 6 Speed
Fits: 04-21 WRX STI, 07-09 Legacy GT Spec B

Only 9 left

$5200~~$55.54~~ Save 6%
Up to $10 off

HPS Performance
Black Cold Air Intake w/ Heatshield
Fits: 15-21 WRX STI

$27100~~$281.00~~ Save $10

Pay over time · Est. $8.47/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 $12.50 off

In Stock

Cusco
Braided Stainless Steel Clutch Line
Fits: 15-21 WRX, 04-21 WRX STI

Only 8 left

$11250~~$125.00~~ Save $12.50

2015-2021 Subaru STI Parts for Sale

If you want to improve the performance, appearance, or longevity of your Subaru STI, then aftermarket 2015 STI parts are a great place to start. Back in 2011, the Subaru company laid the legal groundwork for a number of ambitious performance parts. Over the years, they’ve created high quality aftermarket parts and performance parts for highly anticipated models and at JDMuscle, you have access to top-quality from the last decade.

Subaru's aftermarket 2015 STI parts hit their stride with a wide range of enhancements and performance solutions for an array of vehicles made during this period of time. Today, many of these groundbreaking 2015 STI parts still hold their value. JDMuscle carries STI upgrades for parts ranging from 2015 models and beyond, including:

2016 STI parts
2017 STI parts
2018 STI parts
2019 STI parts
2020 STI parts
2021 STI parts

We Carry a Wide Selection of Aftermarket 2015 STI Parts

We have the widest selection of dedicated 2015 STI parts available online today. Your options are practically unlimited with our inventory and expertise. Start your journey toward better performance and more power by taking a look at where it all started with 2011 STI parts.

Here at JDMuscle, we have proudly offered the finest in high performance automotive upgrades since 2019. With more than three decades of cumulative experience, you're sure to get the parts and accessories to help you achieve the look, feel, and power you're looking for. Our knowledge and expertise are second to none. Get in touch today to match your Subaru STI with the finest performance enhancements available. Our team is eager to answer your questions.