Air Induction

IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) ...

The IAG Performance EJ Dual Injector TGV Housings with matching "Double Barrel" Fuel Rails are specifically designed for Subaru WRX STI race cars that require additional fuel and may desire better drivability at idle or lower RPMs. In the past, you had...

The IAG Performance 2015 - 21 WRX Complete TGV housings replace the OEM tumbler generator valves as well as the separate lower plastic risers on your turbocharged Subaru FA20 DIT engine. IAG's WRX TGV housings are designed to improve flow and performance...

The IAG Performance 2015 - 21 WRX Complete TGV Housings replace the OEM tumbler generator valves as well as the separate lower plastic risers on your turbocharged Subaru FA20 DIT engine. IAG's WRX TGVs are designed to improve flow and performance by...

In the hunt for more horsepower Subaru owners can be limited by their OEM throttle body. The OEM units just aren't big enough to meet the demands of larger upgraded turbochargers. For years those who were seeking to upgrade this component were forced to...

In the hunt for more than 600 horsepower Subaru owners can be limited by their OEM throttle body. The OEM units just aren't big enough to meet the demands of larger upgraded turbochargers. For years those who were seeking to upgrade this component were...

IAG Big Bore 76mm Throttle Body w/ Electronics & Adapter Package For Subaru STI / Cosworth Intake Manifolds ...

IAG Big Bore 76mm Throttle Body w/ Electronics & Adapter Package For Subaru STI Process West Intake Manifolds ...

In the hunt for more than 600 horsepower Subaru owners can be limited by their OEM throttle body. The OEM units just aren't big enough to meet the demands of larger upgraded turbochargers. For years those who were seeking to upgrade this component were...

IAG Performance is proud to offer 3mm phenolic grade CE spacers for your 2.0L and 2.5L engine. This is a simple, cost-effective way to maximize the power of your current set-up. The 3mm spacer is thick enough to provide superior thermal insulation to the...

IAG Performance is proud to offer 8mm phenolic grade CE spacers for your Subaru 2.0L and 2.5L engine. This is a simple, cost-effective way to maximize the power of your current set-up. The 8mm spacer offers superior thermal insulation and also aids in...

IAG Performance is proud to offer 5mm phenolic grade CE spacers for your Subaru 2.0L and 2.5L engine. This is a simple, cost-effective way to maximize the power of your current set-up. The 5mm spacer offers improved thermal insulation and also aids in...

The IAG Performance Lower Intake Manifold Gasket is manufactured from 1/32" thick nitrile material. Our intake manifold gaskets are not layered with paper like the factory gaskets. They are engineered to stay intact when removed from your cylinder head...

IAG Performance offers replacement hardware set for use with IAG EJ20 / EJ25 V1 TGV's which are fitted with OEM gaskets (No Phenolic Spacers). Includes: (x4) M8 x 90mm Zinc Plated Socket Head Bolts (x4) M8 x 25mm Zinc Plated Socket Head Bolts (x8) M8...

IAG Performance offers replacement hardware set for use with IAG EJ20 / EJ25 V1 TGV's which are fitted to 3mm or 8mm thick phenolic spacers. Includes: (x4) M8 x 100mm Zinc Plated Socket Head Bolts (x4) M8 x 30mm Zinc Plated Socket Head Bolts(x8) M8...

IAG Performance offers a hardware set for use with IAG EJ20 / EJ25 Dual Injector TGV's Housings which are fitted with 3mm or 8mm Phenolic Spacers.Includes: (x8) M8 x 30mm Zinc Plated Socket Head Bolts Fitment Notes: Works with all IAG TGV's (Part...

IAG Performance offers replacement hardware set for use with IAG EJ20 / EJ25 V2 TGV's which are fitted with OEM gaskets (No Phenolic Spacers). Includes: (x8) M8 x 25mm Zinc Plated Socket Head Bolts (x8) M8 Washers Fitment Notes: Works with all IAG...

IAG Performance offers replacement hardware set for use with IAG EJ20 / EJ25 V2 TGV's which are fitted to 8mm thick phenolic spacers. Includes: (x8) M8 x 35mm Zinc Plated Socket Head Bolts (x8) M8 Zinc Plated Washers (x4) Spring Pins Fitment Notes: ...

IAG Performance offers replacement hardware set for use with IAG EJ20 / EJ25 V2 TGV's which are fitted to 3mm thick phenolic spacers. Includes: (x8) M8 x 30mm Zinc Plated Socket Head Bolts(x8) M8 Zinc Plated Washers Fitment Notes:Works with all IAG V2...

The IAG replacement TGV hardware inserts for EJ intake manifold compatibility is designed to work with the IAG V2 TGV Housings. The replacement hardware adapter may be switched around to fit the bolt spacing of various intake manifolds Subaru produced on...

This seal kit is intended for someone that was unable to reuse their original seals during the install of an IAG Complete TGV Housing (PN# IAG-AFD-3020). The seal set includes four upper intake manifold seals and four lower riser seals. Includes:(x4)...

The IAG Performance MAF Sensor Block Off Plate for the 2002-07 Subaru WRX / STI is designed to seal the MAF sensor location on cars that are converted to speed density tuning (where the MAF sensor is no longer needed). The block off plate can be used in...

The IAG Performance MAF Sensor Block Off Plate for the 2008+ Subaru WRX, 2008-21 STI & 2005-09 LGT is designed to seal the MAF sensor location on cars that are converted to speed density tuning (where the MAF sensor is no longer needed). The block...

The IAG MAF (Mass Air Flow Sensor) mounting flange is manufactured from aluminum and is designed to be welded onto a custom 3" aluminum pipe. The flange easily accepts the OEM MAF and o-ring. *Note this a part that requires fabrication and welding to use...

The IAG MAF (Mass Air Flow Sensor) mounting flange is manufactured from aluminum and is designed to be welded onto a custom 3" aluminum pipe. The flange easily accepts the OEM MAF and o-ring. *Note this a part that requires fabrication and welding to use...

IAG Performance BIG MAF Intake for 2002-07 Subaru WRX / STI features mandrel bent aluminum piping and K&N Filter. Requires tuning.Includes: K&N Cone Filter Silicone Transition Hose & Hose Clamps 3" O.D. Polished Aluminum Piping w/ MAF Sensor Port

IAG Performance BIG MAF Intake for 2008-14 Subaru WRX / STI features mandrel bent polished aluminum piping, multi-layer silicone hose connector, lined hose clamps and K&N Filter. *This product requires tuning for use. Includes: K&N Cone Filter...

Subaru / FHI Upper Intake Manifold Seal For 2015-20 WRX & 2014-20 Forester XT

Subaru / FHI Lower Intake Manifold Seal For 2015-20 WRX & 2014-20 Forester XT

The SF Air Box adds the benefits of a cold air intake to the outstanding performance of the SF Intake. The factory inlet directs cold air from the front grill to the SF Airbox, which encloses the SF Intake. Hot engine bay air that robs horsepower is...