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MARCH MADNESS SAVINGS ARE ON!
MARCH MADNESS SAVINGS ARE ON!

2015-2021 Subaru WRX Engine Parts

GrimmSpeed V2 Bypass Valve 2015-2021 WRX

Original price $269.00 - Original price $269.00
Original price
$269.00
$269.00 - $269.00
Current price $269.00

DESCRIPTION The GrimmSpeed V2 Bypass Valve received many upgrades such as a redesigned the internal piston to eliminate the potential failure point...

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GrimmSpeed V2 Cast Aluminum Turbo Inlet 2015-2021 WRX

Original price $214.00 - Original price $214.00
Original price
$214.00
$214.00 - $214.00
Current price $214.00

DESCRIPTION One of the biggest complaints we’ve heard from 2015-21 WRX owners has to do with cracks forming in their OEM plastic turbo inlets from ...

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Motul 8100 X-Clean EFE 5W-30 Engine Oil Change Kit 2015-2026 WRX

Original price $67.33 - Original price $80.21
Original price
$67.33 - $80.21
$67.33 - $80.21
Current price $67.33

The Motul 8100 X-Clean 5W-30 Engine Oil Change Kit is an easy, convenient solution for engine oil changes! It comes with everything you need for th...

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Subaru OEM Super Coolant 1 Gallon

Original price $31.16 - Original price $31.16
Original price
$31.16
$31.16 - $31.16
Current price $31.16

Formulated for long-lasting corrosion and rust protection for all cooling system components, this prediluted antifreeze/engine coolant prevents the...

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GrimmSpeed 3-Port Electronic Boost Control Solenoid 2015-2021 WRX

Original price $182.00 - Original price $182.00
Original price
$182.00
$182.00 - $182.00
Current price $182.00

DESCRIPTION The GrimSpeed Electronic Boost Control Solenoid is one of GrimmSpeed's most utilized upgrades due to the durability, simplicity of use,...

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COBB Tuning Accessport V3 2015-2021 WRX / 2015-2021 STI

Original price $770.00
Original price $770.00 - Original price $770.00
Original price $770.00
Current price $693.00
$693.00 - $693.00
Current price $693.00

Emissions 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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NGK Laser Iridium Spark Plug Set 2015-2021 WRX

Original price $60.84 - Original price $60.84
Original price
$60.84
$60.84 - $60.84
Current price $60.84

NGK Laser Iridium spark plugs provide superior ignitability and long service life. Fine wire iridium tipped center electrode and fine wire platinum...

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Subaru OEM Engine Oil Filter 2015-2026 WRX

Original price $10.25 - Original price $10.25
Original price
$10.25
$10.25 - $10.25
Current price $10.25

The importance of routine oil changesNo motor oil lasts forever. The heat and friction produced between the moving parts of any engine eventually c...

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IBR Flex Fuel Sensor Kit 2008-2021 WRX / 2007-2021 STI

Original price $599.99 - Original price $599.99
Original price
$599.99
$599.99 - $599.99
Current price $599.99

This kit is designed to provide a way to data log and monitor the ethanol content of fuel on most new Subaru Vehicles. Our proprietary controller r...

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Koyorad Aluminum Racing Radiator 2008-2021 WRX / 2008-2021 STI

Original price $565.60
Original price $565.60 - Original price $565.60
Original price $565.60
Current price $424.18
$424.18 - $424.18
Current price $424.18

The Hyper V-Core Series is the newest to the Koyorad | Koyo All Aluminum Racing Radiator line up. An engine's cooling system in many newer vehicles...

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GrimmSpeed Red Charge Pipe Kit 2015-2021 WRX

Original price $319.00 - Original price $319.00
Original price
$319.00
$319.00 - $319.00
Current price $319.00

DESCRIPTION The GrimmSpeed Top Mount Intercooler Charge Pipe Kit is a redesigned performance upgrade over the OEM plastic unit that is restrictive ...

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OLM Carbon Fiber Hood Struts 2015-2021 WRX/STI

Original price $109.00 - Original price $109.00
Original price
$109.00
$109.00 - $109.00
Current price $109.00

DESCRIPTION Add a little style to your hood struts by swapping them for these OLM Carbon Fiber Hood Struts. This piece offers the same OE style and...

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GrimmSpeed Red Stealthbox Intake 2015-2021 WRX

Original price $425.00 - Original price $425.00
Original price
$425.00
$425.00 - $425.00
Current price $425.00

DESCRIPTION The GrimmSpeed Red StealthBox Cold Air Intake System is the result of countless invested hours in research and development to provide t...

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COBB Tuning SF Stage 1+ Power Package 2015-2021 WRX

Original price $1,180.00
Original price $1,180.00 - Original price $1,180.00
Original price $1,180.00
Current price $1,103.00
$1,103.00 - $1,103.00
Current price $1,103.00

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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GrimmSpeed High Lift Hood Struts 2015-2026 WRX / 2015-2021 STI

Original price $109.00 - Original price $109.00
Original price
$109.00
$109.00 - $109.00
Current price $109.00

DESCRIPTION The biggest issue with the OEM struts that they prevent your hood from opening far enough to allow adequate space for working and light...

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Boomba Bypass Valve 2015-2021 WRX

Original price $267.90 - Original price $267.90
Original price
$267.90
$267.90 - $267.90
Current price $267.90

See the video below to see how badly the stock BPV leaks! We were able to pick up 15 hp and 9 tq from switching to our piece.   This high performan...

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IAG Street Series Black Air Oil Separator 2015-2021 WRX

Original price $499.99
Original price $499.99 - Original price $499.99
Original price $499.99
Current price $424.99
$424.99 - $424.99
Current price $424.99

PROTECT YOUR ENGINE The IAG Air / Oil Separator (AOS) is a smart investment to safeguard and improve your Subaru's performance. Developed ...

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APR Carbon Fiber Radiator Cooling Plate 2015-2021 WRX/STI

Original price $316.00
Original price $316.00 - Original price $316.00
Original price $316.00
Current price $255.17
$255.17 - $255.17
Current price $255.17

The flow of air is not only limited to the outside of a car. To maximize cooling capabilities, a radiator needs a direct flow of air to allow an en...

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COBB Tuning SF Intake Replacement Filter 2015-2021 WRX

Original price $95.00 - Original price $95.00
Original price
$95.00
$95.00 - $95.00
Current price $95.00

WHY? The filter element that originally came with your SF Intake is cleanable and can be reused for the life of your car. However, should your fi...

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GrimmSpeed Black Stealthbox Intake 2015-2021 WRX

Original price $425.00 - Original price $425.00
Original price
$425.00
$425.00 - $425.00
Current price $425.00

DESCRIPTION The GrimmSpeed StealthBox Cold Air Intake System is the result of countless invested hours in research and development to provide the p...

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Perrin Red Bypass Valve 2015-2021 WRX

Original price $278.00
Original price $278.00 - Original price $278.00
Original price $278.00
Current price $236.30
$236.30 - $236.30
Current price $236.30

Add horsepower, quicker response, and reliability with the PERRIN BOV/BPV. A must-have replacement for the leaky, slow responding, and plastic OEM...

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PLM Equal Length Headers 2015-2021 WRX

Original price $380.00 - Original price $380.00
Original price
$380.00
$380.00 - $380.00
Current price $380.00

The 2025 redesign of our PLM Power Driven Turbo Header now features premium 304 stainless steel and a 2-piece clamp-on design for enhanced adjustab...

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Hella SuperTone Horn Kit 2002-2026 WRX / 2004-2021 STI

Original price $50.81
Original price $50.81 - Original price $50.81
Original price $50.81
Current price $43.19
$43.19 - $43.19
Current price $43.19

DESCRIPTION The Hella SuperTone Horn Kit for the 2002+ Subaru WRX and 2004–2021 STI delivers a bold upgrade in both sound and style. Featuring HELL...

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GrimmSpeed Red Lightweight Battery Tiedown 2002+ WRX / 2004-2021 STI

Original price $43.00 - Original price $43.00
Original price
$43.00
$43.00 - $43.00
Current price $43.00

DESCRIPTION Here, you are looking at the GrimmSpeed Lightweight Battery Tiedown. This is a great way to improve the looks and aesthetics of your en...

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Perrin Red Fender Shrouds 2015-2021 WRX / 2015-2021 STI

Original price $124.00
Original price $124.00 - Original price $124.00
Original price $124.00
Current price $105.40
$105.40 - $105.40
Current price $105.40

COMPLETE THE LOOK Matching Perrin's signature pulley cover design, the angled cutouts look great while concealing the factory fender gap.  DESIGN P...

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COBB Tuning Boost Control Solenoid 2015-2021 WRX

Original price $215.00 - Original price $215.00
Original price
$215.00
$215.00 - $215.00
Current price $215.00

Emissions 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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Perrin Brake Reservoir Cover 2002+ WRX/STI

Original price $15.00
Original price $15.00 - Original price $15.00
Original price $15.00
Current price $12.75
$12.75 - $12.75
Current price $12.75

Dress up your engine bay while preventing leaks and spills from your master cylinder reservoir with the PERRIN Brake Reservoir Cozy.  Easy Installa...

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Cusco Type OS Front Strut Power Bar 2015-2021 WRX/STI

Original price $220.00
Original price $220.00 - Original price $220.00
Original price $220.00
Current price $198.00
$198.00 - $198.00
Current price $198.00

6A1 540 A * Type 1 Aluminum Oval shape * Steel Blue Bracket Light weight aluminum oval shaft, strong & durable.

ETS Front Mount Intercooler 2015-2021 WRX/STI

Original price $759.00 - Original price $1,159.00
Original price
$759.00 - $1,159.00
$759.00 - $1,159.00
Current price $759.00

Tired of heat soak? We don't blame you!   It's time to upgrade to an intercooler that is designed specifically for the 2015+ WRX with performance i...

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COBB Tuning Big SF Intake System Airbox Bracket Kit 2015-2021 WRX

Original price $35.00 - Original price $35.00
Original price
$35.00
$35.00 - $35.00
Current price $35.00

This replacement hardware kit for the 2015-2021 WRX intake (Part# 745110) contains the circular bracket along with the edge trim needed to isolat...

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COBB Tuning SF Intake System 2015-2021 WRX

Original price $545.00 - Original price $545.00
Original price
$545.00
$545.00 - $545.00
Current price $545.00

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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GrimmSpeed Red Radiator Shroud 2015-2021 WRX/STI

Original price $99.00 - Original price $99.00
Original price
$99.00
$99.00 - $99.00
Current price $99.00

DESCRIPTION The GrimmSpeed Radiator Shroud has been designed to improve the overall cooling efficiency of your vehicle by channeling the incoming a...

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Perrin Black Fender Shrouds 2015-2021 WRX / 2015-2021 STI

Original price $124.00
Original price $124.00 - Original price $124.00
Original price $124.00
Current price $105.40
$105.40 - $105.40
Current price $105.40

COMPLETE THE LOOK Matching Perrin's signature pulley cover design, the angled cutouts look great while concealing the factory fender gap.  DESIGN P...

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COBB Tuning Cast Turbo Inlet 2015-2021 WRX

Original price $265.00 - Original price $265.00
Original price
$265.00
$265.00 - $265.00
Current price $265.00

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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COBB Tuning Pitch Stop Mount 2002-2026 WRX / 2004-2021 STI

Original price $125.00 - Original price $125.00
Original price
$125.00
$125.00 - $125.00
Current price $125.00

The COBB Subaru Pitch Stop Mount is constructed of CNC machined 6061-T6 aluminum and finished with black anodizing. The COBB logo is laser engrav...

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COBB Tuning Redline Carbon Fiber Fuse Cover 2008-2021 WRX/STI

Original price $205.00 - Original price $205.00
Original price
$205.00
$205.00 - $205.00
Current price $205.00

The COBB Redline Carbon Fiber Fuse Cover for the 2008-2021 Subaru WRX/STI is constructed of solid carbon fiber featuring a 2x2 twill weave p...

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Harness the full potential of your Subaru’s performance with Subaru WRX engine parts from WRXDaily. Fine-tune your engine, boost performance, enhance reliability, and more with a diverse selection of Subaru WRX engine upgrades. Every part is sourced from trusted brands, so you can shop with confidence, knowing you’re getting quality built to last. 

Refine your build with top-notch Subaru WRX engine mods that balance power with precision. Our range of 2015 WRX engine mods provides tailored options to fit your needs and driving style. We’re here to help you create an engine setup that delivers every time you put your foot on the gas and hit the road. 

Experience how the right Subaru WRX engine parts can redefine the way you drive. Let the experts at WRXDaily help you build a custom Subaru that fits your wants and needs.