Engine

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...

IAG FIRE-LOCK 2.5L SUBARU EJ25 HEAD GASKETS window.SHOGUN_IMAGE_ELEMENTS = window.SHOGUN_IMAGE_ELEMENTS || new Array(); window.SHOGUN_IMAGE_ELEMENTS.push({ uuid: 's-4a0223c6-24ac-4678-abcf-c1f968580b14' }) HIGH...

The IAG Performance Fire-Lock head gasket solution was created after years of research and development testing to prevent head gasket failure on high horsepower and high boost Subaru EJ Series engines. This solution is loosely derived from diesel...

The IAG Copper O-Ring Wire & Install Tool Kit is intended for use with our case halves or short blocks. The kit includes (4) lengths of copper o-ring wire and a wooden tool handle end intended to press the o-ring wire into the machined groove without...

The IAG Performance 1/2 Inch Head Stud Set is manufactured by ARP and is designed for use on high horsepower Subaru EJ25, FA20, and FA20 DIT engines. Due to the larger size of the head studs, a greater load can be placed on the fasteners and in turn it...

IAG's / ARP 14mm Head Stud Set is designed for use on high horsepower Subaru engines. The larger size of the stud increases its load capacity which in turn helps to prevent the cylinder head from lifting and creating head gasket failures. The oversized...

The IAG Performance 14mm Head Stud Dowel is specifically designed to work our 14mm ARP head studs and machined cases. Subaru short blocks or cases that are machined for 14mm head studs will require (x2) dowels per side or (x4) dowels total. Dowels are...

The IAG ARP 14mm Head Stud Nut is intended to directly replace (1) of the nuts included with our 14mm Head Stud Set with part number: IAG-ENG-1711. The nuts are sold individually, (x12) are required for (1) engine or (x6) per cylinder head.  PDF...

The IAG ARP 14mm Head Stud is intended to directly replace (1) of the studs included with our 14mm Head Stud Set with part number: IAG-ENG-1711. The replacement studs are sold individually, (x12) are required for (1) engine or (x6) per cylinder head...

The IAG ARP 14mm Head Stud Washer is intended to directly replace (1) of the washers included with our 14mm Head Stud Set with part number: IAG-ENG-1711. The washers are sold individually, (x12) are required for (1) engine or (x6) per cylinder head...

The IAG ARP 1/2" Head Stud Nut is intended to directly replace (1) of the nuts included with our 1/2 Inch Head Stud Set with part number: IAG-ENG-1700. The nuts are sold individually, (x12) are required for (1) engine or (x6) per cylinder head.  ...

The IAG ARP 1/2" Head Stud is intended to directly replace (1) of the studs included with our 1/2 Inch Head Stud Set with part number: IAG-ENG-1700. The replacement studs are sold individually, (x12) are required for (1) engine or (x6) per cylinder head...

The IAG ARP 1/2" Head Stud Washer is intended to directly replace (1) of the washers included with our 1/2 Inch Head Stud Set with part number: IAG-ENG-1700. The washers are sold individually, (x12) are required for (1) engine or (x6) per cylinder head...

IAG Performance carries the OEM Subaru FHI 2.0L & 2.5L engine short block case half bolts in a complete set. This set fits 2002-14 Subaru WRX, 2004-21 Subaru STI, 2005-09 Legacy GT and 2004-08 Forester XT. Includes (x8) 800210990 (x1) 800708630 (x6)...

IAG RACE SERIES FA ENGINE MOUNT SET SOLID W/ BRACKETS FOR 2015-21 SUBARU WRX BUILT FOR...

IAG COMP SERIES FA ENGINE MOUNT SET 90A W/ BRACKETS FOR 2015-21 SUBARU WRX REDUCE ENGINE...

IAG STREET SERIES FA ENGINE MOUNT SET 75A W/ BRACKETS FOR 2015-21 SUBARU WRX REDUCE ENGINE...

The IAG Street Series Subaru Engine Mounts significantly reduce engine movement from worn out OEM mounts and provide a solid feel from the drivetrain during spirited driving. The 75A durometer bushings included with the mounts are 5-7% stiffer than the...

The IAG Competition Series Engine Mounts are designed to be a streetable mount with weekend competition in mind. These are ideal for the person that is looking for performance gains at the road course, dragstrip or autocross but still, drives their car...

The IAG Race Series Engine Mounts are designed as solid mounts with racing in mind. These are ideal for the person that is looking for the ultimate performance gains at the road course, dragstrip or autocross but do not drive the car on the street. The...

The IAG Street Series Engine Mounts significantly reduce engine movement from worn out OEM mounts and provide a solid feel from the drivetrain during spirited driving. The 75A durometer bushings included with the mounts are 5-7% stiffer than the Subaru...

The IAG Competition Series Engine Mounts are designed to be a streetable mount with weekend competition in mind. These are ideal for the person that is looking for performance gains at the road course, dragstrip or autocross but still, drives their car...

The IAG Race Series Engine Mounts are designed to be an all-out racing mount. These are ideal for the person that is looking for performance gains at the road course, dragstrip or autocross. The solid steel bushings included with the mounts leave no room...

The Street Series Engine Mount Bushing Kit is designed specifically for IAG Subaru EJ Engine Mounts. IAG's engine mounts feature the ability to swap bushings for street or track use. The Street Series kit includes (x8) 75A durometer bushings that are...

The Street Series Engine Mount Bushing Kit iwth Pins is designed specifically for IAG Subaru EJ Engine Mounts. IAG's engine mounts feature the ability to swap bushings for street or track use. The Street Series kit with pins includes (x8) 75A durometer...