Use Coupon Code BOOST5 at Checkout!

Due to high volume of orders, please inquire about inventory if it is not directly listed on the product.

Financing available for as low as 0%.

08-14 STI Air Induction

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aFe Direct Fit Magnum Pro S Performance Air Filter - 08-20 WRX / 08-18 STI/ 14+ Forester / 13+ Crosstrek

aFe Direct Fit Magnum Pro S Performance Air Filter - 08-20 WRX / 08-18 STI/ 14+ Forester / 13+ Crosstrek $78.45 $82.58

Aluminati 19mm Billet NA/JDM Manifold Spacers

Aluminati 19mm Billet NA/JDM Manifold Spacers $148.18

AMS EJ25 Intake Manifold Red - 2002-2014 WRX / 2004-2021 STI

AMS EJ25 Intake Manifold Red - 2002-2014 WRX / 2004-2021 STI $1,260.95

AMS EJ25 Intake Manifold Uncoated - 2002-2014 WRX / 2004-2021 STI

AMS EJ25 Intake Manifold Uncoated - 2002-2014 WRX / 2004-2021 STI $1,260.95

Apexi Panel Filter - 08-20 WRX / 08-18 STI / 14+ Forester / 13+ Crosstrek

Apexi Panel Filter - 08-20 WRX / 08-18 STI / 14+ Forester / 13+ Crosstrek $46.55 $49.00

AVO Panel Air Filter - 2008-2021 WRX / 2008-2018 STI

AVO Panel Air Filter - 2008-2021 WRX / 2008-2018 STI $49.00 $53.90

Boomba Racing 75mm DBW Throttle Body Bolt-on Servo Style Black - 04-19 STI

Boomba Racing 75mm DBW Throttle Body Bolt-on Servo Style Black - 04-19 STI $718.20 $798.00

Boomba Racing Bypass Valve - 04-20 STI $297.90 $331.00

ETS Cold Air Intake Wrinkle Black - 2008-2014 STI

ETS Cold Air Intake Wrinkle Black - 2008-2014 STI $295.00

Forced Performance 84mm Turbo Inlet - 02-07 WRX / 04+ STI

Forced Performance 84mm Turbo Inlet - 02-07 WRX / 04+ STI $199.00

Go Fast Bits Deceptor Pro II Electronically Adjustable Blow Off Valve - 02-14 WRX/STI

Go Fast Bits Deceptor Pro II Electronically Adjustable Blow Off Valve - 02-14 WRX/STI $396.90 $441.00

Go Fast Bits Mach 2 TMS Recirculating Diverter Valve - 02-07 WRX / 04-21 STI

Go Fast Bits Mach 2 TMS Recirculating Diverter Valve - 02-07 WRX / 04-21 STI $166.05 $184.50

Go Fast Bits Mach 2 TMS Recirculating Diverter Valve - 04-14 STI / 02-07 WRX

Go Fast Bits Mach 2 TMS Recirculating Diverter Valve - 04-14 STI / 02-07 WRX $166.05 $184.50

Go Fast Bits TMS Respons Hybrid Blow Off Valve - 04-21 STI / 02-07 WRX

Go Fast Bits TMS Respons Hybrid Blow Off Valve - 04-21 STI / 02-07 WRX $268.92 $298.80

GReddy FV Blow Off Valve - 08-14 WRX/STI

GReddy FV Blow Off Valve - 08-14 WRX/STI $346.75 $365.00

GrimmSpeed Cold Air Intake Black Tubing - 2008-2014 WRX/STI / 2009-2013 FXT

GrimmSpeed Cold Air Intake Black Tubing - 2008-2014 WRX/STI / 2009-2013 FXT $349.00

GrimmSpeed Cold Air Intake Red Tubing - 2008-2014 WRX/STI / 2009-2013 FXT

GrimmSpeed Cold Air Intake Red Tubing - 2008-2014 WRX/STI / 2009-2013 FXT $349.00

GrimmSpeed Drive-by-Wire Throttle Body Gasket - 2004-2021 STI / 2006-2007 WRX

GrimmSpeed Drive-by-Wire Throttle Body Gasket - 2004-2021 STI / 2006-2007 WRX $9.00

GrimmSpeed Dry-Con Performance Panel Air Filter - 2008-2022+ WRX/STI

GrimmSpeed Dry-Con Performance Panel Air Filter - 2008-2022+ WRX/STI $59.00

GrimmSpeed MAF Block Off Plate - 2008-2021 STI / 2008-2014 WRX

GrimmSpeed MAF Block Off Plate - 2008-2021 STI / 2008-2014 WRX $42.00

GrimmSpeed TGV to Engine Gaskets

GrimmSpeed TGV to Engine Gaskets $13.00

GrimmSpeed Version 2 Bypass Valve Black - 2004-2021 STI / 2002-2007 WRX

GrimmSpeed Version 2 Bypass Valve Black - 2004-2021 STI / 2002-2007 WRX $249.00

GrimmSpeed Version 2 Bypass Valve Red - 2004-2021 STI / 2002-2007 WRX

GrimmSpeed Version 2 Bypass Valve Red - 2004-2021 STI / 2002-2007 WRX $249.00

HKS SQV IV Black Edition BOV Kit - Universal

HKS SQV IV Black Edition BOV Kit - Universal $250.75 $295.00

HKS SSQV4 Blow Off Valve - 2008-2021 STI

HKS SSQV4 Blow Off Valve - 2008-2021 STI $335.75 $395.00

HKS SSQV4 Blow Off Valve Recirculation Kit - 2008-2021 STI

HKS SSQV4 Blow Off Valve Recirculation Kit - 2008-2021 STI $357.00 $420.00

HKS Super Hybrid Filter - 2008-2021 WRX / 2008-2018 STI

HKS Super Hybrid Filter - 2008-2021 WRX / 2008-2018 STI $38.25 $45.00

HKS Super SQV3 Valve Recirculation Kit - 2008-2021 STI

HKS Super SQV3 Valve Recirculation Kit - 2008-2021 STI $250.75 $295.00

HKS Super SQV4 & Suction Return Kit - 2008-2014 STI

HKS Super SQV4 & Suction Return Kit - 2008-2014 STI $357.00 $420.00

HKS Super SQV4 Blow Off Valve - Universal

HKS Super SQV4 Blow Off Valve - Universal $250.75 $295.00

IAG Big Bore 76mm Throttle Body & Adapter for OEM STI / Cosworth Intake Manifolds

IAG Big Bore 76mm Throttle Body & Adapter for OEM STI / Cosworth Intake Manifolds $379.99

IAG Big Bore 76mm Throttle Body & Adapter Package for Subaru STI Process West Intake Manifolds

IAG Big Bore 76mm Throttle Body & Adapter Package for Subaru STI Process West Intake Manifolds $379.99

IAG Big Bore 76mm Throttle Body Adapter for OEM STI / Cosworth Intake Manifolds

IAG Big Bore 76mm Throttle Body Adapter for OEM STI / Cosworth Intake Manifolds $109.99

IAG Big Bore 76mm Throttle Body Adapter for Subaru STI Process West Intake Manifolds

IAG Big Bore 76mm Throttle Body Adapter for Subaru STI Process West Intake Manifolds $109.99

Injen SP Cold Air Intake System w/ Heatshield - 08-14 WRX/STI

Injen SP Cold Air Intake System w/ Heatshield - 08-14 WRX/STI $259.76 $288.62

Killer B Motorsport Extreme Flow Hard Turbo Inlet 3" Size - 04-21 STI / 02-07 WRX

Killer B Motorsport Extreme Flow Hard Turbo Inlet 3" Size - 04-21 STI / 02-07 WRX $339.00

Killer B Motorsport Extreme Flow Hard Turbo Inlet 84mm Size - 04-21 STI / 02-07 WRX

Killer B Motorsport Extreme Flow Hard Turbo Inlet 84mm Size - 04-21 STI / 02-07 WRX $339.00

Killer B Motorsport Extreme Flow Hard Turbo Inlet OEM Size - 04-21 STI / 02-07 WRX

Killer B Motorsport Extreme Flow Hard Turbo Inlet OEM Size - 04-21 STI / 02-07 WRX $339.00

Mishimoto Cold Air Intake - 2008-2014 WRX/STI

Mishimoto Cold Air Intake - 2008-2014 WRX/STI $338.95

Mishimoto Race Intake - 2008-2014 WRX/STI

Mishimoto Race Intake - 2008-2014 WRX/STI from $215.95 $354.95

Mishimoto Silicone Induction Hose - 2002-2007 WRX / 2004-2021 STI

Mishimoto Silicone Induction Hose - 2002-2007 WRX / 2004-2021 STI $234.95

Perrin Afta-MAF Intake Tube - 2008-2014 WRX / 2008-2021 STI

Perrin Afta-MAF Intake Tube - 2008-2014 WRX / 2008-2021 STI from $83.20 $107.00

Perrin Cold Air Intake System - 2008-2014 WRX / 2008-2017 STI

Perrin Cold Air Intake System - 2008-2014 WRX / 2008-2017 STI $295.20 $369.00

Perrin Panel Filter- 2008-2018 WRX/STI / 2014-2018 Forester XT / 2013+ Crosstrek

Perrin Panel Filter- 2008-2018 WRX/STI / 2014-2018 Forester XT / 2013+ Crosstrek $53.60 $67.00

Perrin Recirculating Blow Off Valve - 2002-2007 WRX / 2004-2021 STI $199.20 $249.00

Perrin Turbo Inlet Hose - 2002-2007 WRX / 2004-2021 STI

Perrin Turbo Inlet Hose - 2002-2007 WRX / 2004-2021 STI $266.40 $333.00

Perrin Turbo Inlet Hose 3.0" Turbos - 2002-2007 WRX / 2004-2021 STI

Perrin Turbo Inlet Hose 3.0" Turbos - 2002-2007 WRX / 2004-2021 STI $266.40 $333.00

Process West Intake Manifold Street Version - 04-20 STI

Process West Intake Manifold Street Version - 04-20 STI $1,935.00

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