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2015-2021 WRX STI Mods

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Tomei Expreme Equal Length Exhaust Manifold 2015-2021 WRX

$790.00
$790.00 - $790.00
$790.00
$711.00
$711.00 - $711.00
$711.00

Here, you are looking at the Tomei Expreme Equal Length Exhaust Manifold Kit for the 15+ Subaru WRX. This exhaust manifold is the result of 4 years...

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ETS MaxFlow V2 Header 2004-2021 STI

$1,495.00 - $1,495.00
$1,495.00
$1,495.00 - $1,495.00
$1,495.00

The wait is over! Extreme Turbo Systems is proud to release our new Subaru STI V2 MaxFlow Exhaust Header for the 2004+ Subaru STI. We designed our ...

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Tomei Expreme Unequal Length Exhaust Manifold 2015-2021 WRX

$790.00
$790.00 - $790.00
$790.00
$711.00
$711.00 - $711.00
$711.00

Here, you are looking at the Tomei Expreme Unequal Length Exhaust Manifold Kit. What is special about this particular header, is that it is the wor...

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Tomei Expreme Equal Length Exhaust Manifold 2002-2014 WRX/ 2004-2021 STI

$890.00
$890.00 - $890.00
$890.00
$801.00
$801.00 - $801.00
$801.00

This is the Tomei Equal Length Exhaust Manifold and is a great upgrade for those of you looking to optimize the exhaust flow for improved power and...

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Tomei Expreme Unequal Length Headers 2002-2014 WRX/ 2004-2021 STI

$890.00
$890.00 - $890.00
$890.00
$801.00
$801.00 - $801.00
$801.00

This is the Tomei Expreme Unequal Length Exhaust Manifold. This is a direct replacement for your factory exhaust manifold to save weight, improve t...

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GrimmSpeed Equal Length Headers 2015-2021 WRX

$944.00 - $944.00
$944.00
$944.00 - $944.00
$944.00

DESCRIPTION The GrimmSpeed Equal Length Header has been designed to provide the turbocharger with an uninterrupted flow of exhaust gases to greatly...

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PLM Equal Length Headers 2015-2021 WRX

$380.00
$380.00 - $380.00
$380.00
$304.00
$304.00 - $304.00
$304.00

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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PLM Equal Length Headers 2015-2021 STI

$660.00 - $660.00
$660.00
$660.00 - $660.00
$660.00

PLM Subaru WRX & STi EJ EJ25 Equal Length Header Newly released - Oct. 2021! Guarantee the best value and will be the best selling EJ-series he...

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PLM EWG Equal Length Headers 2015-2021 WRX

$695.00 - $1,375.00
$695.00 - $1,375.00
$695.00 - $1,375.00
$695.00

PLM Private Label Mfg. Power Driven Subaru Impreza WRX Header 2015 - 2020 Equal Length Header with EWG External Wastegate ( Turbo Manifold ) By ch...

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

$1,830.73
$1,830.73 - $1,830.73
$1,830.73
$1,189.97
$1,189.97 - $1,189.97
$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...

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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!