Skip to content

2015-2021 WRX & STI Mods

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

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

Overtake Turbo to Downpipe Gasket | Be Done With Leaks Looking for a Subaru gasket that won't leak? We get it – finding a high-quality gasket for y...

View full details

Torque Solution Carbon Thermal Downpipe Blanket 2002-2014 WRX / 2004-2021 STI

$188.88
$188.88 - $188.88
Current price $188.88
Original price $188.88 - Original price $188.88
Original price

Torque Solution Thermal Downpipe Blankets are highly effective at protecting components around your downpipe by blocking the heat produced by the h...

View full details

PLM V2 Axleback Muffler Deletes Titanium Tips 2015-2021 WRX / 2015-2021 STI

$349.00
$349.00 - $349.00
Current price $349.00
Original price $349.00 - Original price $349.00
Original price

PLM (Private label Mfg.) Axle-Back exhaust also known as Muffler Bypass, Muffler Deletes, or Track Pipes are made of tig welded stainless steel, li...

View full details

GrimmSpeed V2 Non-Resonated Catback Exhaust 2015-2021 WRX / 2015-2021 STI

$1,299.00
$1,299.00 - $1,299.00
Current price $1,299.00
Original price $1,299.00 - Original price $1,299.00
Original price

The GrimmSpeed Gentleman’s Exhaust returns with a redesigned Version 2. This version is focused on improved install flexibility, long-term durabili...

View full details

AWE Touring Edition Catback Exhaust w/ Diamond Black Tips 2015-2021 WRX

Current price $1,595.00
$1,595.00 - $1,595.00
Current price $1,595.00
Original price $1,684.21
Original price $1,684.21 - Original price $1,684.21
Original price $1,684.21

BOXER® uncorked: Soundtrack engineered for the EJ25, this is not just a repurposed VA WRX exhaust Proudly engineered, designed, and manufactured i...

View full details

AWE Touring Edition Catback Exhaust w/ Diamond Black Tips 2011-2021 STI

Current price $1,595.00
$1,595.00 - $1,595.00
Current price $1,595.00
Original price $1,684.21
Original price $1,684.21 - Original price $1,684.21
Original price $1,684.21

BOXER® uncorked: Soundtrack engineered for the EJ25, this is not just a repurposed VA WRX exhaust Proudly engineered, designed, and manufactured i...

View full details

COBB Tuning Blued Titanium Tip Kit 2011-2026 WRX / 2011-2021 STI

$280.00
$280.00 - $280.00
Current price $280.00
Original price $280.00 - Original price $280.00
Original price

DESCRIPTION This Blued Titanium Tip Kit is compatible with both our Sedan and Hatch Titanium Cat-Back Exhaust systems for 2011+ Subaru WRX and ST...

View full details

ETS Extreme Resonated Catback Stealth Black Tips 2015-2021 WRX/STI

$1,445.00
$1,445.00 - $1,445.00
Current price $1,445.00
Original price $1,445.00 - Original price $1,445.00
Original price

The ETS Catback exhaust for the 2015-2021 Subaru WRX and STI is a made at ExtremeTurboSystem's facility in Vancouver, Washington. This exhaust feat...

View full details

Remark 4" Burnt Stainless Double Wall Axleback 2015-2021 WRX/STI

$755.00
$755.00 - $755.00
Current price $755.00
Original price $755.00 - Original price $755.00
Original price

Direct bolt-on easy installation to the factory OEM or Remark mid Y-pipe (Please note : this product will NOT fit aftermarket exhaust system)

Remark 4" Stainless Single Wall Axleback 2015-2021 WRX/STI

$635.00
$635.00 - $635.00
Current price $635.00
Original price $635.00 - Original price $635.00
Original price

Direct bolt-on easy installation to the factory OEM or Remark mid Y-pipe (Please note : this product will NOT fit aftermarket exhaust system)

Remark R1-Spec Titanium Catback Exhaust 2015-2021 WRX/STI

$1,095.00
$1,095.00 - $1,095.00
Current price $1,095.00
Original price $1,095.00 - Original price $1,095.00
Original price

This is the Remark R1-Spec Cat-Back Exhaust System. This is a high-performance exhaust system inspired by track-oriented exhaust systems designed w...

View full details

Remark R1-Spec Stainless Steel Catback Exhaust 2015-2021 WRX/STI

$995.00
$995.00 - $995.00
Current price $995.00
Original price $995.00 - Original price $995.00
Original price

This is the Remark R1-Spec Cat-Back Exhaust System. This is a high-performance exhaust system inspired by track-oriented exhaust systems designed w...

View full details

AWE Touring to Track Conversion Kit 2015-2021 WRX / 2015-2021 STI

Current price $395.00
$395.00 - $395.00
Current price $395.00
Original price $463.16
Original price $463.16 - Original price $463.16
Original price $463.16

BOXER® uncorked: Proudly engineered, designed, and manufactured in-house at AWE, in the USA Rasp-free, aggressive BOXER® tone without the drone ...

View full details

AWE Track to Touring Conversion Kit 2015-2021 WRX / 2015-2021 STI

Current price $695.00
$695.00 - $695.00
Current price $695.00
Original price $757.89
Original price $757.89 - Original price $757.89
Original price $757.89

BOXER® uncorked: Proudly engineered, designed, and manufactured in-house at AWE, in the USA Rasp-free, aggressive BOXER® tone without the drone ...

View full details

Remark Sports Touring Catback 2015-2021 WRX/STI

$1,395.00 - $1,595.00
$1,395.00 - $1,595.00
Current price $1,395.00
Original price $1,395.00 - Original price $1,595.00
Original price

Part Number RK-C4076S-01 Non-Res Stainless Steel RK-C4076S-01C Resonated Stainless Steel RK-C4076S-01T Non-Res Burnt Stainless RK-C407...

View full details

ETS Mid-Pipe 2015-2021 STI

$459.00 - $559.00
$459.00 - $559.00
Current price $459.00
Original price $459.00 - Original price $559.00
Original price

OVERTAKE Turbo to J-Pipe Gasket 2015-2021 WRX

$28.00
$28.00 - $28.00
Current price $28.00
Original price $28.00 - Original price $28.00
Original price

Overtake Turbo to J-Pipe Gasket | Be Done With Leaks Looking for a Subaru gasket that won't leak? We get it – finding a high-quality gasket for you...

View full details

OVERTAKE Exhaust Gasket Set 2002-2014 WRX / 2004-2021 STI

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

Overtake Exhaust Gasket Set | Be Done With Exhaust Leaks Looking for a Subaru gasket that won't leak? We get it – finding a high-quality gasket for...

View full details

OVERTAKE Exhaust Gasket Set 2015-2021 WRX

$94.00
$94.00 - $94.00
Current price $94.00
Original price $94.00 - Original price $94.00
Original price

Overtake Exhaust Gasket Set | Be Done With Exhaust Leaks Looking for a Subaru gasket that won't leak? We get it – finding a high-quality gasket for...

View full details

HKS Stainless Steel Equal Length Exhaust Manifold 2006-2014 WRX / 2004-2021 STI

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

DESCRIPTION  Experience enhanced exhaust performance with the HKS Equal Length Header (Exhaust Manifold) designed for the Subaru EJ25 motor. Compat...

View full details

OVERTAKE Up-Pipe Hardware Kit 2002-2014 WRX / 2004-2021 STI

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

Overtake Up-Pipe Hardware Kit | Get Your Turbo Bolted Up Right If you've ever removed the turbo from your EJ powered Subaru, you know that the hard...

View full details

OVERTAKE Downpipe to Catback 3in Gasket 2X THICK 2002-2026 WRX / 2004-2021 STI

$26.00
$26.00 - $26.00
Current price $26.00
Original price $26.00 - Original price $26.00
Original price

Overtake 3in 2X Thick Exhaust Gasket | Be Done With Exhaust Leaks Looking for a Subaru gasket that won't leak? We get it – finding a high-quality g...

View full details

OVERTAKE J-Pipe Hardware Kit 2015-2026 WRX

$48.00
$48.00 - $48.00
Current price $48.00
Original price $48.00 - Original price $48.00
Original price

Overtake Subaru J-Pipe Hardware Kit | Heavy Duty Replacements The turbo studs on the FA turbo motors are notoriously difficult to deal with, and th...

View full details

GrimmSpeed V2 Resonated Catback Exhaust 2015-2021 WRX / 2015-2021 STI

$1,399.00
$1,399.00 - $1,399.00
Current price $1,399.00
Original price $1,399.00 - Original price $1,399.00
Original price

The GrimmSpeed Gentleman’s Exhaust returns with a redesigned Version 2. This version is focused on improved install flexibility, long-term durabili...

View full details

IAG Performance Equal Length Header 2015-2021 WRX

$849.99
$849.99 - $849.99
Current price $849.99
Original price $849.99 - Original price $849.99
Original price

THE IAG PERFORMANCE EQUAL LENGTH HEADER The IAG Performance Equal Length Header is the perfect upgrade to boost the performance and power in ...

View full details

MBRP Armor Pro Series Single Exit Catback w/ Carbon Fiber Tip 2011-2021 WRX / 2011-2021 STI

Current price $779.99
$779.99 - $779.99
Current price $779.99
Original price $963.52
Original price $963.52 - Original price $963.52
Original price $963.52

DESCRIPTION The MBRP Armor Pro Series Single Exit Cat-Back with Carbon Fiber Tip is the perfect blend of race-ready performance and premium style f...

View full details

MBRP Armor Pro Series Single Exit Catback w/ Burnt Tip 2011-2021 WRX / 2011-2021 STI

Current price $734.99
$734.99 - $734.99
Current price $734.99
Original price $907.93
Original price $907.93 - Original price $907.93
Original price $907.93

DESCRIPTION Get race-ready sound and standout style with the MBRP Armor Pro Series Single Exit Cat-Back Exhaust with Burnt Tip for the 2011–2021 WR...

View full details

Mishimoto Stainless Steel Catback Exhuast 2015-2021 WRX / 2015-2021 STI

Current price $1,326.95
$1,326.95 - $1,326.95
Current price $1,326.95
Original price $1,460.00
Original price $1,460.00 - Original price $1,460.00
Original price $1,460.00

DESCRIPTION Unleash the full potential of your 2015-2021 Subaru WRX/STI with the Mishimoto Performance Cat-back Exhaust. Engineered from precision ...

View full details

COBB Tuning Stainless Steel Catback Exhaust 2011-2021 WRX / 2011-2021 STI

$1,565.00
$1,565.00 - $1,565.00
Current price $1,565.00
Original price $1,565.00 - Original price $1,565.00
Original price

DESCRIPTION This COBB Stainless Steel Cat-Back Exhaust is a direct bolt on for the 2011-2021 GV and VA Subaru WRX/STI Sedan. ConstructionThe enti...

View full details

Revel Medallion Ultra Titanium Single Exit Catback Exhaust 2011-2021 WRX/STI

Current price $1,161.00
$1,161.00 - $1,161.00
Current price $1,161.00
Original price $1,290.00
Original price $1,290.00 - Original price $1,290.00
Original price $1,290.00

FULL TITANIUM EXHAUST SYSTEM Introducing the Medallion Ultra Ti: a new line of full titanium exhausts that offers extremely light weight durability...

View full details

COBB Tuning Brushed Titanium Tip Kit 2011-2026 WRX / 2011-2021 STI

$280.00
$280.00 - $280.00
Current price $280.00
Original price $280.00 - Original price $280.00
Original price

DESCRIPTION This Brushed Titanium Tip Kit is compatible with both our Sedan and Hatch Titanium Cat-Back Exhaust systems for 2011+ Subaru WRX and ...

View full details

COBB Tuning Titanium 3" Catback Exhaust 2011-2021 WRX/STI

$2,450.00
$2,450.00 - $2,450.00
Current price $2,450.00
Original price $2,450.00 - Original price $2,450.00
Original price

DESCRIPTION The COBB Titanium Cat-Back Exhaust is un-matched in build quality, style, and performance. Utilizing Grade 4 titanium tubing, this ca...

View full details

ETS Muffled Resonated Burnt Tips 2015-2021 WRX/STI

$1,495.00
$1,495.00 - $1,495.00
Current price $1,495.00
Original price $1,495.00 - Original price $1,495.00
Original price

The ETS Catback exhaust for the 2015-2021 Subaru WRX and STI is a made at ExtremeTurboSystem's facility in Vancouver, Washington. This exhaust feat...

View full details

ETS Muffled Resonated Polished Tips 2015-2021 WRX/STI

$1,495.00
$1,495.00 - $1,495.00
Current price $1,495.00
Original price $1,495.00 - Original price $1,495.00
Original price

The ETS Catback exhaust for the 2015-2021 Subaru WRX and STI is a made at ExtremeTurboSystem's facility in Vancouver, Washington. This exhaust feat...

View full details

ETS Muffled Resonated Stealth Black Tips 2015-2021 WRX/STI

$1,545.00
$1,545.00 - $1,545.00
Current price $1,545.00
Original price $1,545.00 - Original price $1,545.00
Original price

The ETS Catback exhaust for the 2015-2021 Subaru WRX and STI is a made at ExtremeTurboSystem's facility in Vancouver, Washington. This exhaust feat...

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!