Skip to content
CHRISTMAS SAVINGS ARE LIVE!
CHRISTMAS SAVINGS ARE LIVE!

2015-2021 WRX STI Mods

Spec-D Sequential Tail Lights Chrome Housing w/ Red Lens 2015-2021 WRX/STI

Original price $399.00
Original price $399.00 - Original price $399.00
Original price $399.00
Current price $357.14
$357.14 - $357.14
Current price $357.14

FEATURES / SPECS Direct OEM Replacement Feature the latest in LED Technology Plug-and-play installation with pre assembled wiring LED neon tube an...

View full details

AEM Cold Air Intake Silver 2015-2021 WRX

Original price $419.99
Original price $419.99 - Original price $419.99
Original price $419.99
Current price $369.99
$369.99 - $369.99
Current price $369.99

AEM Cold Air Intake Systems are designed to produce horsepower and torque gains. They replace the restrictive factory airbox and air filter to give...

View full details

AEM Front Strut Tower Bar Wrinkle Red 2015-2021 WRX/STI

Original price $346.99
Original price $346.99 - Original price $346.99
Original price $346.99
Current price $260.24
$260.24 - $260.24
Current price $260.24

When a car equipped with a McPherson Strut suspension system, like the 2015 Subaru WRX 2.0L or WRX STi 2.5L, is being driven through a turn there i...

View full details

GrimmSpeed 2 Bolt Ceramic Coated Up-Pipe 2002-2014 WRX / 2004-2021 STI

Original price $309.00
Original price $309.00 - Original price $309.00
Original price $309.00
Current price $278.10
$278.10 - $278.10
Current price $278.10

DESCRIPTION The GrimmSpeed Ceramic Coated 2 Bolt Up-Pipe has been designed to be a high-performance direct replacement for your factory up-pipe to ...

View full details

GrimmSpeed Donut Gasket 2002-2014 WRX / 2004-2021 STI

Original price $17.00
Original price $17.00 - Original price $17.00
Original price $17.00
Current price $15.30
$15.30 - $15.30
Current price $15.30

DESCRIPTION This is the GrimmSpeed Downpipe Donut Gasket. This gasket is available as a direct replacement for your leaking OEM donut gasket and fe...

View full details

GrimmSpeed Downpipe to Catback 3" Gasket 2x Thick

Original price $29.00
Original price $29.00 - Original price $29.00
Original price $29.00
Current price $26.10
$26.10 - $26.10
Current price $26.10

DESCRIPTION Tired of the endless searching for a 3" 2 Bolt premium gasket that doesn't blow out? Most aftermarket Subaru exhaust systems need a 3" ...

View full details

GrimmSpeed License Plate Relocation Kit 2015-2017 WRX/STI

Original price $83.00
Original price $83.00 - Original price $83.00
Original price $83.00
Current price $74.70
$74.70 - $74.70
Current price $74.70

DESCRIPTION The main purpose of the Grimmspeed License Plate Relocation Kit is to position the license plate to the OEM tow hook provision. The fr...

View full details

GrimmSpeed Turbo to Downpipe Gasket 2002-2014 WRX / 2004-2021 STI

Original price $20.00
Original price $20.00 - Original price $20.00
Original price $20.00
Current price $18.00
$18.00 - $18.00
Current price $18.00

DESCRIPTION The GrimmSpeed Turbo To Downpipe Gasket is made using a premium multi-layer steel with a stainless steel fire-ring, this gasket surpass...

View full details

GrimmSpeed Downpipe to Catback 3" Gasket

Original price $24.00
Original price $24.00 - Original price $24.00
Original price $24.00
Current price $21.60
$21.60 - $21.60
Current price $21.60

DESCRIPTION Tired of the endless searching for a 3" 2 Bolt premium gasket that doesn't blow out? Most aftermarket Subaru exhaust systems need a 3" ...

View full details

GrimmSpeed Stock Downpipe to Aftermarket 3" Catback Adapter

Original price $60.00
Original price $60.00 - Original price $60.00
Original price $60.00
Current price $54.00
$54.00 - $54.00
Current price $54.00

DESCRIPTION The Grimmspeed OEM Downpipe To 3-Inch Cat-Back Adapter is very popular for those of you who are retaining the stock downpipe and need t...

View full details

GrimmSpeed Exhaust Manifold to Head Gasket (Pair) 2002+ WRX/STI

Original price $24.00
Original price $24.00 - Original price $24.00
Original price $24.00
Current price $21.60
$21.60 - $21.60
Current price $21.60

DESCRIPTION These are the Grimmspeed Head to Exhaust Manifold Dual Port Gaskets. These particular gaskets see some of the highest temperatures when...

View full details

Invidia R400 Gemini Black Tip Catback Exhaust WRX/STI 2015-2021

Original price $2,674.00
Original price $2,674.00 - Original price $2,674.00
Original price $2,674.00
Current price $1,738.10
$1,738.10 - $1,738.10
Current price $1,738.10

DESCRIPTION The Invidia Gemini R400 Single-Layer Cat-Back Exhaust System with Black Tips is engineered for performance enthusiasts seeking improved...

View full details

Invidia R400 Gemini Polished Tips Catback Exhaust WRX/STI 2015-2021

Original price $2,480.80
Original price $2,480.80 - Original price $2,480.80
Original price $2,480.80
Current price $1,612.52
$1,612.52 - $1,612.52
Current price $1,612.52

DESCRIPTION The Invidia Gemini Single Layer Cat-Back Exhaust System with Stainless Steel Tips is a premium performance upgrade for 2015-2021 Subaru...

View full details

Tein RX1 Coilovers 2015-2021 WRX/STI

Original price $1,550.00 - Original price $1,550.00
Original price
$1,550.00
$1,550.00 - $1,550.00
Current price $1,550.00

Highlights: Full-Length Ride Height Adjustment Feature - Ride Height Adjustment with Little or No Change in Ride Quality. Twin-Tube Structure - Fo...

View full details

Tein Flex Z Coilovers 2015-2021 WRX/STI

Original price $990.00
Original price $990.00 - Original price $990.00
Original price $990.00
Current price $859.00
$859.00 - $859.00
Current price $859.00

These coilovers are the result of expert research in technology and manufacturing. Your vehicle and wallet will benefit from Tein's efforts! SPECIF...

View full details

Tein Mono Sport Coilovers 2015-2021 WRX/STI

Original price $1,990.00 - Original price $1,990.00
Original price
$1,990.00
$1,990.00 - $1,990.00
Current price $1,990.00

New for 2015, this particular model of the Tein Mono Sport Coilovers is designed to greatly reduce body roll compared to the factory setup. The res...

View full details

Tein Street Basis Z Coilovers 2015-2021 WRX/STI

Original price $780.00 - Original price $780.00
Original price
$780.00
$780.00 - $780.00
Current price $780.00

The Tein Street Basis Z incorporates many of the same technologies that have made the Street Basis so popular by enthusiasts, but now made even mor...

View full details

Fortune Auto 500 Series Generation 8 Coilovers 2015-2021 WRX/STI

Original price $1,928.00 - Original price $2,328.00
Original price
$1,928.00 - $2,328.00
$1,928.00 - $2,328.00
Current price $1,928.00

Fortune Auto engineers are consistently chasing improvement and the development of the Generation 8 - 500 series damper is no exception.The 500 Ser...

View full details

MSP Double Sided Carbon Fiber VR Style Hood 2015-2021 WRX/STI

Original price $1,999.00 - Original price $1,999.00
Original price
$1,999.00
$1,999.00 - $1,999.00
Current price $1,999.00

DESCRIPTION This MSP Double-Sided Carbon Fiber Hood is a show stopper! These hoods feature meshing around the hood scoop and vents. They also come ...

View full details

Invidia Full Titanium Single Exit Catback Exhaust 2015-2021 WRX/STI

Original price $2,102.80
Original price $2,102.80 - Original price $2,102.80
Original price $2,102.80
Current price $1,366.82
$1,366.82 - $1,366.82
Current price $1,366.82

DESCRIPTION The Invidia Full Titanium Cat-Back Exhaust System is the pinnacle of performance and design for 2015-2021 Subaru WRX and STI models. Cr...

View full details

Invidia Q300 Titanium Tip Catback Exhaust 2015-2021 WRX/STI

Original price $2,640.40
Original price $2,640.40 - Original price $2,640.40
Original price $2,640.40
Current price $1,716.26
$1,716.26 - $1,716.26
Current price $1,716.26

DESCRIPTION The Invidia Q300 Quad Tip Cat-Back Exhaust System with Titanium Burnt Tips is the perfect performance upgrade for 2015-2021 Subaru WRX/...

View full details

Invidia Q300 Stainless Tip Catback Exhaust 2015-2021 WRX/STI

Original price $2,480.80
Original price $2,480.80 - Original price $2,480.80
Original price $2,480.80
Current price $1,612.52
$1,612.52 - $1,612.52
Current price $1,612.52

DESCRIPTION The Invidia Q300 Quad Tipped Cat-Back Exhaust System with Stainless Steel Tips is a premium performance upgrade for the 2015-2021 Subar...

View full details

Invidia Equal Length Race Exhaust Manifold 2008-2014 WRX / 2004-2021 STI

Original price $1,830.73
Original price $1,830.73 - Original price $1,830.73
Original price $1,830.73
Current price $1,189.97
$1,189.97 - $1,189.97
Current price $1,189.97

DESCRIPTION The Invidia Equal Length Race Exhaust Manifold is engineered for Subaru models like the 2005+ STI and 2008-2014 WRX, delivering peak pe...

View full details

Invidia N1 Burnt Tip Dual Catback Exhaust 2015-2021 WRX/STI

Original price $1,869.00
Original price $1,869.00 - Original price $1,869.00
Original price $1,869.00
Current price $1,214.85
$1,214.85 - $1,214.85
Current price $1,214.85

DESCRIPTION The Invidia N1 Dual Exit Cat-Back Exhaust System with Titanium Tips is a high-performance upgrade for the 2015-2021 Subaru WRX/STI, des...

View full details

Invidia N1 Stainless Tip Dual Catback Exhaust 2015-2021 WRX/STI

Original price $1,813.00
Original price $1,813.00 - Original price $1,813.00
Original price $1,813.00
Current price $1,178.45
$1,178.45 - $1,178.45
Current price $1,178.45

DESCRIPTION The Invidia N1 Cat-Back Exhaust System with Stainless Steel Tips is the ultimate upgrade for 2015-2021 Subaru WRX and STI enthusiasts. ...

View full details

Invidia Q300 Resonated Single Exit Catback 2015-2021 WRX/STI

Original price $1,666.00
Original price $1,666.00 - Original price $1,666.00
Original price $1,666.00
Current price $1,082.90
$1,082.90 - $1,082.90
Current price $1,082.90

DESCRIPTION The Invidia Q300 Single Exit Cat-Back Exhaust System with Stainless Steel Tip is a premium performance upgrade for 2015-2021 Subaru WRX...

View full details

Invidia N1 Racing Burnt Tip Single Exit Exhaust 2015-2021 WRX/STI

Original price $1,390.20
Original price $1,390.20 - Original price $1,390.20
Original price $1,390.20
Current price $903.63
$903.63 - $903.63
Current price $903.63

DESCRIPTION The Invidia N1 Racing Series Single Exit Cat-Back Exhaust with Titanium Tip is engineered for 2015-2021 Subaru WRX/STI models to delive...

View full details

Invidia N1 Burnt Tip Single Exit Exhaust 2015-2021 WRX/STI

Original price $1,587.60
Original price $1,587.60 - Original price $1,587.60
Original price $1,587.60
Current price $1,031.94
$1,031.94 - $1,031.94
Current price $1,031.94

DESCRIPTION The Invidia N1 Single Exit Cat-Back Exhaust System with Titanium Tip is a premium performance upgrade for the 2015-2021 Subaru WRX/STI....

View full details

Invidia N1 Stainless Tip Single Exit Exhaust 2015-2021 WRX/STI

Original price $1,587.60
Original price $1,587.60 - Original price $1,587.60
Original price $1,587.60
Current price $1,031.94
$1,031.94 - $1,031.94
Current price $1,031.94

DESCRIPTION The Invidia N1 Single Exit Cat-Back Exhaust System with Stainless Steel Tip is a high-performance upgrade tailored for 2015-2021 Subaru...

View full details

Invidia Lower Catted Downpipe Divorced Wastegate w/ 2 Bungs 2008-2014 WRX / 2008-2021 STI

Original price $1,428.00
Original price $1,428.00 - Original price $1,428.00
Original price $1,428.00
Current price $799.00
$799.00 - $799.00
Current price $799.00

DESCRIPTION The Invidia Lower Catted Divorced Wastegate Downpipe with 2 Bungs takes your Subaru’s performance to the next level. Engineered with a ...

View full details

Invidia Catted Downipe Divorced Wastegate w/ 2 Bungs 2008-2014 WRX / 2008-2021 STI

Original price $1,428.00
Original price $1,428.00 - Original price $1,428.00
Original price $1,428.00
Current price $759.00
$759.00 - $759.00
Current price $759.00

DESCRIPTION The Invidia Catted Divorced Wastegate Downpipe with 2 Bungs takes your Subaru’s performance to the next level. Engineered with a larger...

View full details

Invidia Catted Downipe Divorced Wastegate 2008-2014 WRX / 2008-2021 STI

Original price $993.00
Original price $993.00 - Original price $993.00
Original price $993.00
Current price $629.00
$629.00 - $629.00
Current price $629.00

DESCRIPTION The Invidia Catted Divorced Wastegate Downpipe is the ultimate performance upgrade for Subaru models, including the 2008-2014 WRX and 2...

View full details

Invidia Up Pipe w/o EGT Bung 2002-2014 WRX / 2004-2021 STI

Original price $280.28 - Original price $280.28
Original price
$280.28
$280.28 - $280.28
Current price $280.28

DESCRIPTION The Invidia Up-Pipe - No EGT Bung is a premium upgrade for Subaru owners looking to improve exhaust flow and turbo efficiency. Designed...

View full details

Invidia Up Pipe w/ EGT Bung 2002-2014 WRX / 2004-2021 STI

Original price $280.28 - Original price $280.28
Original price
$280.28
$280.28 - $280.28
Current price $280.28

DESCRIPTION The Invidia Up-Pipe is a high-performance upgrade for Subaru models, designed to replace the restrictive and failure-prone factory up-p...

View full details

Invidia 3" Downpipe to 2.5" Exhaust Adapter 2008-2021 WRX/STI

Original price $98.00
Original price $98.00 - Original price $98.00
Original price $98.00
Current price $63.70
$63.70 - $63.70
Current price $63.70

DESCRIPTION The Invidia 3-Inch Downpipe to Stock Cat-Back Exhaust Adapter is the ultimate solution for seamlessly connecting your 3-inch downpi...

View full details

Invidia Stock Downpipe to 3" Exhaust Adapter 2008-2021 WRX/STI

Original price $98.00
Original price $98.00 - Original price $98.00
Original price $98.00
Current price $63.70
$63.70 - $63.70
Current price $63.70

DESCRIPTION The Invidia Stock Downpipe to 3" Exhaust Adapter is a simple yet essential component for seamlessly connecting your stock downpipe to a...

View full details

If you own a Subaru WRX STI, you know you have the perfect platform to craft a masterpiece on wheels. At WRXDaily, we understand that every enthusiast has a vision, and we’re here to offer the WRX STI mods you need to bring yours to life. With products tailored to elevate performance, enhance style, and perfect handling, our curated selection puts endless possibilities at your fingertips. 

No matter what you need, our Subaru WRX STI modifications deliver quality and reliability you can trust. From high-performance upgrades to must-have Subaru STI accessories, we have everything you need to create a car that’s as bold and unique as your passion for driving. Own a 2018 WRX? We offer a variety of 2018 WRX parts designed to fit your specific model. 

With WRXDaily, your Subaru becomes a true reflection of your style and ambition. Browse our selection of WRX STI mods today and start your next build!