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2015-2021 WRX STI Mods

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PLM Axle-Back Muffler Deletes 2015-2021 WRX/STI

$349.00
$299.00 - $349.00
$349.00
$279.20 - $299.00
$279.20 - $299.00
$279.20

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...

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ETS Axleback Conversion Kit 2015-2021 WRX/STI

$645.00 - $895.00
$645.00 - $895.00
$645.00 - $895.00
$645.00

ETS now offers the catback rear secion separately if you're looking to change up your ETS 2015-2021 WRX/STI exhaust system!  Extreme - No Muffler...

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ETS Axle Back Exhaust System 2015-2021 WRX/STI

$595.00 - $695.00
$595.00 - $695.00
$595.00 - $695.00
$595.00

The ETS Axle-back exhaust for the 2015-2021 WRX and STI utilizes a full stainless steel construction. The axle back is 2.5" that mates to the stoc...

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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 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" 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" 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 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 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 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 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 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 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...

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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...

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

$455.00 - $455.00
$455.00
$455.00 - $455.00
$455.00

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

$495.00 - $495.00
$495.00
$495.00 - $495.00
$495.00

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 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! 

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!