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2015-2021 WRX & STI Mods

Remark Resonated Midpipe 2015-2021 WRX/STI

$855.00
$855.00 - $855.00
$855.00
$855.00 - $855.00

This is the Remark Mid Pipe Kit. This mid-pipe has been designed with a larger piping diameter to improve the power, performance, and the turbo res...

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Remark Non Resonated Midpipe 2015-2021 WRX/STI

$755.00
$755.00 - $755.00
$755.00
$755.00 - $755.00

This is the Remark Mid Pipe Kit. This mid-pipe has been designed with a larger piping diameter to improve the power, performance, and the turbo res...

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

$695.00
$695.00 - $695.00
$695.00
$695.00 - $695.00

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 3.5" Stealth Edition Axleback 2015-2021 WRX/STI

$795.00
$795.00 - $795.00
$795.00
$795.00 - $795.00

Here, you are looking at the Remark Axle-Back Exhaust System. These have been designed to save weight by replacing the heavy factory mufflers, all ...

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Remark Boso Edition Stainless Steel Axleback 2015-2021 WRX/STI

$695.00
$695.00 - $695.00
$695.00
$695.00 - $695.00

They are the outlaws of Japan, and known as the "Violent Speed Gang".The outrageous styling, and designs of their JDM vehicles are very iconic with...

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

$755.00
$755.00 - $755.00
$755.00
$755.00 - $755.00

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
$635.00
$635.00 - $635.00

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
$1,095.00
$1,095.00 - $1,095.00

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...

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

$995.00
$995.00 - $995.00
$995.00
$995.00 - $995.00

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...

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Remark Sports Touring Catback 2015-2021 WRX/STI

$1,395.00 - $1,595.00
$1,395.00 - $1,595.00
$1,395.00
$1,395.00 - $1,595.00

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

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Remark 3.5" Burnt Stainless Double Wall SPT Axleback 2015-2021 WRX/STI

$545.00
$545.00 - $545.00
$545.00
$545.00 - $545.00

Got an SPT exhaust system on your Subaru WRX/STI VA?  Upgrade with a REMARK Axleback system for your Subaru  SPT WRX/STI VA today! 

Remark Boso Edition Burnt Blue Axleback 2015-2021 WRX/STI

$565.00
$565.00 - $565.00
$565.00
$565.00 - $565.00

They are the outlaws of Japan, and known as the "Violent Speed Gang".The outrageous styling, and designs of their JDM vehicles are very iconic with...

View full details

Remark Boso Edition Burnt Stainless Steel Axleback 2015-2021 WRX/STI

$795.00
$795.00 - $795.00
$795.00
$795.00 - $795.00

They are the outlaws of Japan, and known as the "Violent Speed Gang".The outrageous styling, and designs of their JDM vehicles are very iconic with...

View full details

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

$695.00
$695.00 - $695.00
$695.00
$695.00 - $695.00

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 3.5" Burnt Stainless Single Wall Axleback 2015-2021 WRX/STI

$695.00
$695.00 - $695.00
$695.00
$695.00 - $695.00

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

$715.00
$715.00 - $715.00
$715.00
$715.00 - $715.00

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 3.5" Stainless Double Wall Axleback 2015-2021 WRX/STI

$655.00
$655.00 - $655.00
$655.00
$655.00 - $655.00

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 3.5" Stainless Single Wall Axleback 2015-2021 WRX/STI

$595.00
$595.00 - $595.00
$595.00
$595.00 - $595.00

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 Strut Tower Brace 2015-2021 WRX/STI

$265.00
$265.00 - $265.00
$265.00
$265.00 - $265.00

Weight - 2.0lbs Material - Full T304 Stainless Steel Manufacture - Tig-welded and fabricated by hand Style - Brushed finished

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!