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Use Coupon Code BOOST5 at Checkout!

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2015-2018 Subaru WRX Parts

Engine Parts

Air InductionCoolingEngine Dress UpTuning & Power PackagesJ-Pipes & DownpipesExhausts & HeadersFuel SystemsIgnition SystemsOiling SystemsEngine ComponentsMotor BuildsTurbos / Turbo Kits


Suspension & Brake Parts
Brake UpgradesBrake PadsBrake RotorsBig Brake KitsSuspension AdjustmentSuspension ControlSuspension LoweringBrake Bundles


Drivetrain Parts
ClutchesShifters & BushingsMounts & Bushings


Exterior Parts
Exterior AccessoriesWheels & Accessories
Interior Parts
Gauges & AccessoriesInterior & Accessories


















Shop Our Selection of 2015-2018 WRX Performance Parts

Elevate your 2015-2021 Subaru WRX with premium aftermarket parts and performance upgrades from New Provisions Racing. Whether you're seeking to boost power, enhance handling, or simply upgrade the look of your Subaru, our extensive selection of WRX parts ensures you have every option to customize your ride. Shop with confidence and uncover the perfect match of quality and value for your Subaru WRX, including models from 2016, 2017, 2018, 2019, 2020, and 2021.

Discover an impressive catalog of WRX aftermarket parts designed to help you personalize your 2015-2021 WRX. Our inventory includes:

  • Performance exhaust systems for improved power and aggressive sound.
  • Cold air intakes and intercoolers engineered for maximum airflow and cooling.
  • Suspension components like coilovers, sway bars, and bushings to enhance control.
  • Turbo upgrades and supporting mods for those craving extra horsepower.
  • Drivetrain parts for all levels, from street to track.
  • Exterior and interior styling upgrades so your Subaru stands out and feels uniquely your own.

Looking to upgrade your braking system? Explore our range of 18+ STI brake rotors, a go-to choice for WRX owners who want stronger, more consistent stopping performance.

All our Subaru WRX parts—whether you're upgrading a 2016, 2017, 2018, 2019, 2020, and 2021 WRX—are sourced from the industry's most trusted brands. Shop new products or performance staples, each specifically curated for the 2015-2021 WRX platform. Looking for other generations? Check out our full selection of 2011 WRX parts or jump ahead to 2020 WRX parts.

Essential Maintenance Parts for 2015-2021 WRX

Fast cars require proper care. Find all necessary maintenance parts in one place:

  • High-performance oil and fuel filters.
  • Replacement brake pads and rotors.
  • Belts, fluids, bushings, and engine gaskets.
  • OEM and aftermarket ignition and cooling components.

Stay ahead of wear and tear by using premium WRX parts for routine maintenance—extend the life and preserve the unique driving experience of your Subaru. Unlock the true potential of your Subaru with the finest parts and performance upgrades for 2015-2021 WRX models, available now at New Provisions Racing.

Top Performance Upgrades for 2015-2021 WRX

Ready to take your WRX to the next level? Focus on these high-impact performance upgrades:

  • Aftermarket exhausts for increased flow and a sportier tone.
  • Tuned ECU solutions for optimized power.
  • Suspension improvements—lowering springs, adjustable coilovers, and upgraded mounts for sharper handling.
  • Brake kits for superior stopping power, a must-have for spirited driving.
  • Clutch upgrades designed for added reliability and track readiness.

All upgrades are engineered to fit your 2015, 2016, 2017, 2018, 2019, 2020, 2021 Subaru WRX with precision, ensuring both performance gains and reliability.

What engines are available in the 2015–2018 Subaru WRX?

  • All models come with a 2.0L turbocharged 4-cylinder Boxer engine.
  • Produces around 268 horsepower and 258 lb-ft of torque.
  • Offers direct-injection technology for efficiency and performance.
  • Paired with either a 6-speed manual or a 6-speed automatic (CVT) transmission.

New Provisions Racing Offers Unbeatable Parts

As car people, the New Provisions Racing team is proud to deliver the same quality and affordability that we want in our very own car parts. We understand how critical it is to have the top WRX parts on the market, especially Subaru WRX brakes and the WRX performance clutch. That is why we do everything we can to provide you with the best quality, longest-lasting WRX parts around. We also take every step to make sure that our products are affordable, and that you get the best deal possible. You will never overpay for 15+ Subaru WRX parts when you shop the New Provisions Racing online store. In addition to incredible, proven products, we also offer customer support that you will not find anywhere else. We take the time to answer all your questions and to help you find the WRX parts you want and need. We also pride ourselves on fast service and shipping, so you can get to your upgrades as soon as possible. For quality products and care that you can’t beat, choose New Provisions Racing and our online store for your WRX parts needs.

C
  • Product Reviews
  • Site Reviews
10/30/2025
Joshua
United States
Expedient delivery and accurate product, loving this place!
Exedy OEM Replacement Flywheel - 06-18* WRX
10/30/2025
Joshua
United States
Arrived expediently and as described, now if only the other places I ordered parts from were this good!
Exedy Stage 1 Organic Disc Clutch Kit - 06-17 WRX
10/30/2025
Demareay B.
United States
New Provisions Racing absolutely came through for me. They kept me updated every step of the way, and when I accidentally stripped a bolt during my BBK install, they didn’t hesitate — shipped a replacement out right away and made sure I was taken care of. That kind of customer service is hard to...New Provisions Racing absolutely came through for me. They kept me updated every step of the way, and when I accidentally stripped a bolt during my BBK install, they didn’t hesitate — shipped a replacement out right away and made sure I was taken care of. That kind of customer service is hard to find. The new BBK looks incredible on my WRX, and the quality speaks for itself. Definitely a company that stands behind their products and their customers!
New Provisions Racing Version 3.0 OE "STI"yle Brake Upgrade Kit Front - 2022+ WRX
10/29/2025
WAEL A.
United States
Very high quality finishing and feel. Gave a lot of value to the front of my car.
Seibon Carbon Fiber Fog Light Bezels - 15-17 WRX/STI | FLS15SBIMP
10/28/2025
Stephen S.
United States
This is the new blue formula. Worked great throughout the break-in process and offers peace of mind for your large investment.
Motul Break-In 10W-40 Mineral Engine Oil 1QT (Case of 12) - Universal | MOT 108080
10/22/2025
Abdulrahman A.
Kuwait
Brakes feel really good, they bite really well. It gives you confidence that the car will actually slow down unlike oem brakes. Tested on track and they make the car feel much more alive and controllable before corners
New Provisions Racing Version 3.0 OE "STI"yle Brake Upgrade Kit Front - 2022+ WRX
10/03/2025
Erich S.
United States
18x9.5 on oem size tires.
Option Lab R716 18x9.5 5x108 +35 Gotham Black Wheel - Universal
10/03/2025
Erich
United States
Wheels look awesome. Installed on a 2017 Focus ST3 on oem size 235 tires.
Option Lab R716 18x9.5 5x108 +35 Gotham Black Wheel - Universal
09/30/2025
Brandin N.
United States
Couldnt be happier. Been waiting to upgrade glad I did
DBA T2 Street Brake Rotor Package Deal - Choice of Pads - 15-17 STI
09/29/2025
Lewis
United States
Works as it should. I had to squeeze it into the stock turbo inlet and change the clamp but otherwise does the job. Nice sound especially with an aftermarket intake.
Nameless Performance Bypass Valve - 15-21 WRX
09/27/2025
Duncan C.
United States
First, shipping was blazing fast; I placed my order in the morning and UPS was in possession by the end of the day. The rotors themselves, while heavy, are a welcome replacement for the factory brembos. Paired with Hawk ceramic pads, they bite hard and work as promised. I’m fiddling with the idea...First, shipping was blazing fast; I placed my order in the morning and UPS was in possession by the end of the day. The rotors themselves, while heavy, are a welcome replacement for the factory brembos. Paired with Hawk ceramic pads, they bite hard and work as promised. I’m fiddling with the idea of tracking it in the future, and wanted rotors capable of taking a beating. I don’t doubt these can. New Provisions also had the best pricing I could find on these*
DBA T3 4000 Series Slotted Brake Rotor Front - 2018-2021 STI
09/27/2025
Jamie D.
United States
They are amazing and huge bad *** look really nice
New Provisions Racing STI Stock Replacement Powercoated Brake Calipers 4/2 Pistons - Multiple Subaru Fitment
09/24/2025
Ou S.
United States
Forget power, upgrade suspension to improve your track times!!!
Whiteline Front Lower Control Arm Upgrade Kit - 2022+ WRX | KTA449
09/12/2025
Patrick G.
United States
First of all, Nick from NPR saw that I was ordering a different kind of brake rotor set and personally emailed me recommending these rotors. Long story short, got these installed on the car and LOVE THEM! Amazing rotors. Amazing customer service!
DBA En-Shield Street Series Brake Rotor Rear - 2015-2021 WRX
09/12/2025
Patrick G.
United States
First of all, Nick from NPR saw that I was ordering a different kind of brake rotor set and personally emailed me recommending these rotors. Long story short, got these installed on the car and LOVE THEM! Amazing rotors. Amazing customer service!
DBA En-Shield Street Series Brake Rotor Front - 2015-2021 WRX
09/05/2025
Ranjeet
United States
I got a pair for the best deal anywhere and they fit PERFECT.
CLEARANCE - Carbon Fiber Reproductions Full Replacement Mirror Covers (With Turn Signal Cut-Out) - 2015-2021 WRX/STI
09/03/2025
Cruz P.
United States
Great kit with everything needed. Bought front and rear set. Powder coating is on point with zero install issues. All hardware is included as well, which makes it easier.
New Provisions Racing OE "STI"yle Stage Brake Upgrade Kit Front - 2002-2021 WRX
08/26/2025
Seth P.
United States
These parts worked really well, but I would probably recommend that they include some form of directions, a little bit more so than what they had done, which was none. It makes you have to do everything on the YouTube videos nowadays. But otherwise parts came in a decent time frame and really...These parts worked really well, but I would probably recommend that they include some form of directions, a little bit more so than what they had done, which was none. It makes you have to do everything on the YouTube videos nowadays. But otherwise parts came in a decent time frame and really good condition. They bolted up very nicely, and they sure as heck, made one massive difference
Kartboy Endlinks - 2015-2021 STI
08/23/2025
Rjlan
United States
Excellent kit for the money, my WRX is a street car so these are perfect for improved braking and looks. Powedercoat is flawless, comes with every bolt, washer clip, pin, pads you need.
New Provisions Racing OE "STI"yle Stage Brake Upgrade Kit Front - 2002-2021 WRX
08/21/2025
Tracy C.
United States
The cover fit perfectly and included everything to put it on easily. It made a big difference in making the fan noise way less noticeable. You can still hear the fan but definitely helped 👍
Subaru OEM AC Fan Blower Sound Fix Kit - 15-21 WRX/STI
08/19/2025
Steve s.
United States
I was surprised how much of a difference these made. Mitigates much of the unnecessary movement of the rear diff. I did these along with an upgraded diff carrier and I must say the two go hand in hand. Installation was super easy. Used some bushing grease and they slid right in on a chassis with...I was surprised how much of a difference these made. Mitigates much of the unnecessary movement of the rear diff. I did these along with an upgraded diff carrier and I must say the two go hand in hand. Installation was super easy. Used some bushing grease and they slid right in on a chassis with 35k miles
Torque Solution Rear Differential Inserts - 2008-2023 WRX/STI
08/19/2025
Stephen S.
United States
This diff carrier is a must have upgrade even on stock or lightly modified applications. Much better than the sloppy oem carrier. Plus it looks great!
Cusco Reinforced Differential Carrier - 08-21 STI / 15-22 WRX
08/14/2025
Austin
United States
Paired with solid bushings, i noticed a improved shifting feel at high rpms.
Perrin Driveshaft Lockdown Kit - 2008-2024 WRX/STI | PSP-DRV-201
08/14/2025
Austin
United States
Good quality
PLM Seat Base Mount Brackets for Subaru WRX 2008-2014
08/14/2025
Austin
United States
Pretty soft padding. I like them
NRG Innovations SFI 5-Point Seat Harness - Universal | SBH-B6PCBK
08/14/2025
Austin
United States
Does the job
NRG Blue Seat Belt Harness Bar 49" - Universal | HBR-002BL
08/14/2025
Austin
United States
Pretty comfortable helmet ! Its my first one and i love it, very affordable, seems to be very nice quality. Would recommend
G-Force Rift SA2020 Helmet Black X-Large - Universal | GF13010-XLG-BLK
07/30/2025
Luis B.
United States
Recently switched to 6 pot brakes in the front. TR knuckles were in backorder so I ordered these. Easy install and they work great.
New Provisions Racing STI Rotor Spacer with Hub Extension - 2022+ WRX
07/29/2025
Prinya W.
Thailand
The Perrin wheel spacer is an excellent product to make the fitment between wheel, brake and fender. It is very good quality products, the installation is very simple and making a perfect fit for wheel.
Perrin Wheel Spacers Black 5x100/5x114.3 7mm Pair - Universal Subaru
07/22/2025
zerry p.
United States
Ride quality and comfort greatly improved. Takes sharp bumps much better than stock. Very happy with purchase and the great deal!
Bilstein B8 Performance Plus Strut Kit- 15-21 WRX/STI
REVIEWS

Use Coupon Code BOOST5 at Checkout!

Use the chat function below to ask us anything you need!

Financing available for as low as 0%.

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