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Subaru STI Engine Parts

Fuel Injector Clinic 1000cc Fuel Injectors 2002-2014 WRX / 2007-2021 STI

Original price $457.00 - Original price $457.00
Original price
$457.00
$457.00 - $457.00
Current price $457.00

DESCRIPTION The Fuel Injector Clinic 1000cc Top Feed Injectors for the 2002-2014 WRX and 2007-2021 STI provide the fuel capacity needed for moderat...

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Fuel Injector Clinic 1200cc Fuel Injectors 2002-2014 WRX / 2007-2021 STI

Original price $567.00 - Original price $567.00
Original price
$567.00
$567.00 - $567.00
Current price $567.00

DESCRIPTION The Fuel Injector Clinic 1200cc Top Feed Injectors for the 2002-2014 WRX and 2007-2021 STI deliver the added fueling capacity needed fo...

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Fuel Injector Clinic 1650cc Fuel Injectors 2002-2014 WRX / 2007-2021 STI

Original price $914.00 - Original price $914.00
Original price
$914.00
$914.00 - $914.00
Current price $914.00

DESCRIPTION The Fuel Injector Clinic 1650cc Top Feed Injectors for the 2002-2014 WRX and 2007-2021 STI provide the fuel delivery needed for high-po...

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Perrin Neon Yellow Coolant Overflow Tank 2002+ WRX / 2004-2021 STI

Original price $222.00
Original price $222.00 - Original price $222.00
Original price $222.00
Current price $166.50
$166.50 - $166.50
Current price $166.50

DESCRIPTION The Perrin Coolant Overflow Tank for the 2002+ Subaru WRX and 2004–2021 STI is a premium upgrade that replaces the factory plastic tank...

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Perrin Pink Coolant Overflow Tank 2002+ WRX / 2004-2021 STI

Original price $222.00
Original price $222.00 - Original price $222.00
Original price $222.00
Current price $166.50
$166.50 - $166.50
Current price $166.50

DESCRIPTION The Perrin Coolant Overflow Tank for the 2002+ Subaru WRX and 2004–2021 STI is a premium upgrade that replaces the factory plastic tank...

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Perrin Black Coolant Overflow Tank 2002+ WRX / 2004-2021 STI

Original price $208.00
Original price $208.00 - Original price $208.00
Original price $208.00
Current price $156.00
$156.00 - $156.00
Current price $156.00

DESCRIPTION The Perrin Coolant Overflow Tank for the 2002+ Subaru WRX and 2004–2021 STI is a premium upgrade that replaces the factory plastic tank...

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IAG 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads 2002-2014 WRX / 2004-2021 STI

Original price $18,999.99 - Original price $18,999.99
Original price
$18,999.99
$18,999.99 - $18,999.99
Current price $18,999.99

IAG 1150 LONG BLOCK ENGINE WITH IAG 1150 HEADS FOR 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT A "DROP-IN" SOLUTION The IAG Perf...

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IAG 1150 2.35L Destroked Long Block Engine w/ IAG 1150 Heads 2002-2014 WRX / 2004-2021 STI

Original price $19,499.99 - Original price $19,499.99
Original price
$19,499.99
$19,499.99 - $19,499.99
Current price $19,499.99

IAG 1150 2.35L DESTROKED LONG BLOCK ENGINE W/ IAG 1150 HEADS DROP IN AND DRIVE The IAG Performance hand-built Subaru 11...

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IAG 950 2.35L Destroked Long Block Engine w/ IAG 950 Heads 2002-2014 WRX / 2004-21 STI

Original price $14,899.99 - Original price $14,899.99
Original price
$14,899.99
$14,899.99 - $14,899.99
Current price $14,899.99

IAG 950 2.35L DESTROKED LONG BLOCK ENGINE W/ IAG 950 HEADS DROP IN AND DRIVE The IAG Performance han...

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Perrin Blue Battery Tie Down 2002+ WRX / 2004-2021 STI

Original price $82.00
Original price $82.00 - Original price $82.00
Original price $82.00
Current price $61.50
$61.50 - $61.50
Current price $61.50

DESCRIPTION The Perrin Battery Tie Down is a quick and affordable upgrade for your Subaru. Batteries are essential for many of your vehicles functi...

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GrimmSpeed Black Front Strut Bar 2015-2021 WRX/STI

Original price $249.00
Original price $249.00 - Original price $249.00
Original price $249.00
Current price $224.10
$224.10 - $224.10
Current price $224.10

DESCRIPTION The GrimmSpeed Front Strut Bar for the 2015-2021 Subaru WRX/STI blends precision engineering with clean aesthetics to deliver serious p...

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Perrin Top Mount Intercooler Kit 2008-2021 STI

Original price $890.00
Original price $890.00 - Original price $890.00
Original price $890.00
Current price $667.50
$667.50 - $667.50
Current price $667.50

DESCRIPTION The Perrin TMIC is 12% larger than the nearest competitor's core. The large core means less restriction and better cooling capabilities...

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Revel GT Carbon Alternator Cover 2015-2021 STI

Original price $218.50 - Original price $218.50
Original price
$218.50
$218.50 - $218.50
Current price $218.50

ENHANCE INTERIOR Enhance the look of the interior with perfectly fitted dry carbon overlays. Using various methods of extensive testing for eac...

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Revel GT Dry Carbon Engine Belt Cover 2008-2014 WRX / 2008-2021 STI

Original price $218.50 - Original price $218.50
Original price
$218.50
$218.50 - $218.50
Current price $218.50

ENHANCE INTERIOR Enhance the look of the interior with perfectly fitted dry carbon overlays. Using various methods of extensive testing for eac...

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Revel GT Dry Carbon Air Intake Cover 2015-2018 WRX/STI

Original price $204.25 - Original price $204.25
Original price
$204.25
$204.25 - $204.25
Current price $204.25

ENHANCE INTERIOR Enhance the look of the interior with perfectly fitted dry carbon overlays. Using various methods of extensive testing for eac...

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GrimmSpeed Black Fender Shrouds 2015-2021 WRX/STI

Original price $94.00
Original price $94.00 - Original price $94.00
Original price $94.00
Current price $84.60
$84.60 - $84.60
Current price $84.60

DESCRIPTION Do away with the flimsy, boring factory fabric shrouds and make your engine bay stand out with the brand new GrimmSpeed Fender Shrouds....

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Process West Black Intake Manifold Track Version 2002-2014 WRX / 2004-2021 STI

Original price $2,333.00 - Original price $2,333.00
Original price
$2,333.00
$2,333.00 - $2,333.00
Current price $2,333.00

The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics ...

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Perrin Oil Cooler Kit 2002-2014 WRX / 2004-2021 STI

Original price $558.00 - Original price $1,040.00
Original price $558.00 - Original price $1,040.00
Original price $558.00
$418.50 - $780.00
$418.50 - $780.00
Current price $418.50

WHY YOU WANT THIS In racing conditions engine oil temperature skyrockets. This causes decreased engine performance and reduces the oil's ability to...

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Perrin Blue Oil Cap 2002+ WRX / 2004-2021 STI

Original price $82.00
Original price $82.00 - Original price $82.00
Original price $82.00
Current price $61.50
$61.50 - $61.50
Current price $61.50

Replace the ugly yellow plastic OEM oil fill cap with the sexy billet aluminum PERRIN Oil Fill Cap! Complete Your Engine Bay The Perrin Aluminum O...

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GrimmSpeed Black Air Oil Separator 2002-2007 WRX / 2004-2021 STI

Original price $315.00
Original price $315.00 - Original price $315.00
Original price $315.00
Current price $283.50
$283.50 - $283.50
Current price $283.50

DESCRIPTION The GrimmSpeed Air/Oil Separator for turbocharged Subaru models has a unique design that allows you to maintain your PCV Valve while se...

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SuperPro Billet Pitch Stop Mount 2002+ WRX/ 2004-2021 STI

Original price $149.99 - Original price $149.99
Original price
$149.99
$149.99 - $149.99
Current price $149.99

SuperPro control arms are an easy to install replacement/upgrade suspension part. Fixing many of the downfalls and issues associated with OE and ot...

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COBB Tuning Airbox 2019-2021 STI

Original price $290.00 - Original price $290.00
Original price
$290.00
$290.00 - $290.00
Current price $290.00

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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COBB Tuning BPV Adapter for FMIC 2002-2007 WRX / 2004-2021 STI

Original price $85.00 - Original price $85.00
Original price
$85.00
$85.00 - $85.00
Current price $85.00

EMISSIONS This part is legal under the provisions of EPA’s Anti-Tampering Policy. COBB Tuning has established a reasonable basis (testing results...

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COBB Tuning Fuel Pressure Regulator for Fuel Rail Kit 2008-2021 STI

Original price $380.00 - Original price $380.00
Original price
$380.00
$380.00 - $380.00
Current price $380.00

EMISSIONS This part is legal under the provisions of EPA’s Anti-Tampering Policy. COBB Tuning has established a reasonable basis (testing results...

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COBB Tuning Fuel Rail Line Kit 2008-2021 STI

Original price $595.00 - Original price $595.00
Original price
$595.00
$595.00 - $595.00
Current price $595.00

EMISSIONS This part is legal under the provisions of EPA’s Anti-Tampering Policy. COBB Tuning has established a reasonable basis (testing results...

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COBB Tuning Hot Pipe Kit 2015-2021 STI

Original price $475.00 - Original price $475.00
Original price
$475.00
$475.00 - $475.00
Current price $475.00

EMISSIONS This part is legal under the provisions of EPA’s Anti-Tampering Policy. COBB Tuning has established a reasonable basis (testing results...

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COBB Tuning Cold Pipe Kit 2015-2021 STI

Original price $475.00 - Original price $475.00
Original price
$475.00
$475.00 - $475.00
Current price $475.00

EMISSIONS This part is legal under the provisions of EPA’s Anti-Tampering Policy. COBB Tuning has established a reasonable basis (testing results...

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COBB Tuning Silver Front Mount Intercooler Kit 2015-2021 STI

Original price $2,435.00 - Original price $2,435.00
Original price
$2,435.00
$2,435.00 - $2,435.00
Current price $2,435.00

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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COBB Tuning Airbox 2015-2018 STI

Original price $260.00 - Original price $260.00
Original price
$260.00
$260.00 - $260.00
Current price $260.00

EMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

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COBB Tuning SF Intake System 2008-2014 WRX / 2008-2021 STI

Original price $340.00 - Original price $340.00
Original price
$340.00
$340.00 - $340.00
Current price $340.00

DESCRIPTION The COBB Tuning SF Intake removes a pre-turbo restriction in the stock intake system. The SF Intake intake system utilizes sever...

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COBB Tuning Silver Front Mount Intercooler Core 2015-2021 WRX/STI

Original price $1,150.00 - Original price $1,150.00
Original price
$1,150.00
$1,150.00 - $1,150.00
Current price $1,150.00

EMISSIONS This part is legal under the provisions of EPA’s Anti-Tampering Policy. COBB Tuning has established a reasonable basis (testing results...

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IAG EJ Competition Series Oil Pan 2002-2014 WRX/ 2004-2021 STI

Original price $699.99 - Original price $699.99
Original price
$699.99
$699.99 - $699.99
Current price $699.99

The IAG Competition Series Oil Pan for the Subaru WRX and STI is uniquely designed and CNC machined to suit a wide range of street and track applic...

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IAG EJ Competition Series Oil Pan 2002-2014 WRX/ 2004-2021 STI

Original price $629.99 - Original price $629.99
Original price
$629.99
$629.99 - $629.99
Current price $629.99

The IAG Competition Series Oil Pan for the Subaru WRX and STI is uniquely designed and CNC machined to suit a wide range of street and track applic...

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IAG EJ Street Series Oil Pan 2002-2014 WRX/ 2004-2021 STI

Original price $569.99 - Original price $569.99
Original price
$569.99
$569.99 - $569.99
Current price $569.99

The IAG Street Series Oil Pan for the Subaru WRX and STI is uniquely designed and CNC machined to suit a wide range of street and track application...

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IAG EJ Competition Series Oil Pan Package 2002-2014 WRX / 2004-2021 STI

Original price $899.99 - Original price $899.99
Original price
$899.99
$899.99 - $899.99
Current price $899.99

IAG offers our V2 Oil Pickup, Competition Series Baffle and Windage Tray combined with our New Oil Pan finished in black as a complete package.Abou...

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IAG 550 Long Block Engine w/ IAG 550 Heads 2002-2014 WRX / 2004-2021 STI

Original price $9,999.99 - Original price $10,299.99
Original price
$9,999.99 - $10,299.99
$9,999.99 - $10,299.99
Current price $9,999.99

IAG 550 LONG BLOCK ENGINE WITH IAG 550 HEADS FOR 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT A "DROP-IN" SOLUTION The IAG Perf...

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Your Subaru STI was built for excitement, but why settle for stock when you can achieve so much more? WRXDaily’s premium Subaru STI engine parts help you unlock the raw potential of your car. Turn your track days or daily drives into unbeatable experiences.

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Every part we offer is precision-engineered for seamless integration and maximum impact. From reliable endurance to thrilling power gains, these parts are made to perform. Don’t wait to transform your Subaru into the ultimate performance machine; start your build with WRXDaily’s expertly crafted parts today.