Quick view IAG Performance IAG Long Block Basic Installation Kit Availability: Usually Ships in 24 to 72 Hours (1) Compare $1,699.99 The IAG Long Block Engine Basic Installation Kits provide all of the basic components needed to install one of our EJ25 Long Block Engine Packages in one complete kit. All fluids for initial break-in are included. Just select the kit which fits your year... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Long Block Basic Installation Kit for 2015-21 WRX FA20F DIT Availability: Usually Ships in 24 to 72 Hours Compare $999.99 The IAG Long Block Engine Basic Installation Kits provide all of the basic components needed to install one of our FA20F DIT WRX Long Block Engine Packages in one complete kit. All fluids for initial break-in are included. Components Included: (x2)... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG / JE Pro Seal Subaru EJ25 / EJ257 100mm Head Gasket 0.039in For 14mm Head Studs (1 Pair) Availability: Usually Ships in 24 to 72 Hours Compare $169.99 The IAG Performance / JE Pro Seal Subaru MLS head gaskets were designed specifically for use with IAG's 14mm Head Stud Sets. The gaskets are manufactured from stainless steel material and feature enlarged head stud holes to clear 14mm head studs without... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG / JE Pro Seal Subaru EJ25 / EJ257 100mm Head Gasket 0.039in For 14mm Head Studs (1) Availability: Usually Ships in 24 to 72 Hours (1) Compare $89.99 The IAG Performance / JE Pro Seal Subaru MLS head gaskets were designed specifically for use with IAG's 14mm Head Stud Sets. The gaskets are manufactured from stainless steel material and feature enlarged head stud holes to clear 14mm head studs without... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List
Sold Out Quick view IAG Performance IAG Fire-Lock 2.5L Head Gaskets (1 Pair w/ Fire-Lock Rings) for Subaru EJ25 / EJ257, 100mm, .051", for 14mm Head Studs Availability: Usually Ships in 24 to 72 Hours Compare $299.99 After years of research and development testing, the IAG Performance Fire-Lock™ head gasket is the newest solution to preventing head gasket failure on high horsepower and high boost Subaru EJ25 engines. This solution is loosely derived from diesel... Out of Stock Out of Stock Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Fire-Lock 2.0L Head Gaskets (1 Pair w/ Fire-Lock Rings) Subaru EJ20, 93.5mm, .051", for 14mm Head Studs Only Availability: Usually Ships in 24 to 72 Hours Compare $299.99 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... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Cooper Ring Head Gasket for Subaru EJ25 / EJ257, 100mm, .051", For 1/2" & 11mm Head Studs (1 Pair) Availability: Usually Ships in 24 to 72 Hours (3) Compare $249.99 The IAG Performance Cooper ring head gasket is manufactured from an asbestos-free composite raw material and features silicone based beading applied to critical areas to improve sealing around all water and oil passages. What sets this gasket apart from... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Short Block Copper O-Ring Wire & Install Tool Kit Availability: Usually Ships in 24 to 72 Hours Compare $24.99 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... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 1 Cylinder Head Package For 06-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT (Cams / Lifters Sold Separately) Availability: Usually Ships in 4 to 5 Weeks Compare $2,859.99 IAG Stage 1 Cylinder Head Package: IAG's Stage 1 cylinder heads are intended for those looking for a cost-effective OEM+ replacement. Each package starts with brand new WRX STI OEM head castings, directly from Subaru of America. The bare castings are... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 1 Cylinder Head Package For 02-05 Subaru WRX 2.0L S20 Casting (Cams / Lifters Sold Separately) Availability: Usually Ships in 4 to 5 Weeks Compare MSRP: $2,859.99 - $3,059.99 IAG Stage 1 Cylinder Head Package: IAG's Stage 1 cylinder heads are intended for those looking for a cost-effective OEM+ replacement. Each package starts with brand new WRX S20 OEM head castings, directly from Subaru of America. The bare castings are... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 1 Cylinder Head Package w/ GSC S1 Cams For 06-14 WRX, 04-20 STI, 04-13 FXT, 05-09 LGT Availability: Usually Ships in 4 to 5 Weeks (1) Compare $4,599.99 IAG Stage 1 Cylinder Head Package with GSC Stage 1 Cams: IAG's Stage 1 cylinder heads are intended for those looking for a cost-effective OEM+ replacement. Each package starts with brand new WRX STI OEM head castings, directly from Subaru of America. The... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 1 Cylinder Head Package w/ GSC S1 Cams For 02-05 WRX 2.0L S20 Casting Availability: Usually Ships in 4 to 5 Weeks Compare MSRP: $4,599.99 - $4,799.99 IAG Stage 1 Cylinder Head Package with GSC Stage 1 Cams: IAG's Stage 1 cylinder heads are intended for those looking for a cost-effective OEM+ replacement. Each package starts with brand new WRX S20 OEM head castings, directly from Subaru of America. The... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 2 Pocket Ported Cylinder Heads For Subaru 06-14 WRX, 07-20 STI, 06-13 FXT, 07-09 LGT (Cams / Lifters Sold Separately) Availability: Usually Ships in 4 to 5 Weeks Compare $3,499.99 IAG Stage 2 Pocket Port Cylinder Head Package: The head package centers around our popular CNC pocket porting program which was developed over the last several years. Pocket porting removes excess OEM casting flash and the material underneath the valves... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 2 Pocket Ported Heads w/ GSC S2 Cams For 06-14 Subaru WRX, 07-20 STI, 06-13 FXT, 07-09 LGT Availability: Usually Ships in 4 to 5 Weeks Compare $5,169.99 IAG Stage 2 Pocket Port Cylinder Head & Cam Package: The head package centers around our popular CNC pocket porting program which was developed over the last several years. Pocket porting removes excess OEM casting flash and the material underneath... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 2 Pocket Ported Heads for 02-05 WRX 2.0L S20 Casting (Cams / Lifters Sold Separately) Availability: Usually Ships in 4 to 5 Weeks Compare MSRP: $3,499.99 - $3,699.99 The head package centers around our popular CNC pocket porting program which was developed over the last several years. Pocket porting removes excess OEM casting flash and the material underneath the valves. By smoothing and blending this area under the... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 2 Pocket Ported Heads w/ GSC S2 Cams for 02-05 WRX 2.0L S20 Casting Availability: Usually Ships in 4 to 5 Weeks Compare MSRP: $5,169.99 - $5,369.99 IAG Stage 2 Pocket Ported Heads with GSC S2 Cams The head package centers around our popular CNC pocket porting program which was developed over the last several years. Pocket porting removes excess OEM casting flash and the material underneath the... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 3 Pocket Ported Heads w/ +1mm GSC Valves For 06-14 WRX, 07-20 STI, 06-13 FXT, 07 LGT (Cams / Lifters Sold Separately) Availability: Usually Ships in 4 to 5 Weeks (1) Compare $3,629.99 IAG Stage 3 Pocket Port Cylinder Head Package: The head package centers around our popular CNC pocket porting program which was developed over the last several years. Pocket porting removes excess OEM casting flash and the material underneath the valves... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 3 Pocket Ported Heads w/ +1mm GSC Valves For 02-05 WRX 2.0L S20 Casting (Cams / Lifters Sold Separately) Availability: Usually Ships in 4 to 5 Weeks Compare MSRP: $3,629.99 - $3,829.99 IAG Stage 3 Pocket Port Cylinder Head Package: The head package centers around our popular CNC pocket porting program which was developed over the last several years. Pocket porting removes excess OEM casting flash and the material underneath the valves... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 3 Pocket Ported Heads w/ +1mm GSC Valves For 06-14 WRX, 07-20 STI, 06-13 FXT, 07-09 LGT Availability: Usually Ships in 4 to 5 Weeks Compare $5,499.99 IAG Stage 3 Pocket Port Cylinder Head & Cam Package: The head package centers around our popular CNC pocket porting program which was developed over the last several years. Pocket porting removes excess OEM casting flash and the material underneath... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 3 02-05 WRX 2.0L S20 Casting Cylinder Head Package (Includes Cams / Lifters) Availability: Usually Ships in 4 to 5 Weeks Compare MSRP: $5,499.99 - $5,699.99 IAG Stage 3 Pocket Port Cylinder Head & Cam Package: The head package centers around our popular CNC pocket porting program which was developed over the last several years. Pocket porting removes excess OEM casting flash and the material underneath... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 4 CNC Ported Heads w/ +1mm GSC Valves For 06-14 WRX, 07-20 STI, 06-13 FXT, 07-09 LGT (Cams / Lifters Sold Separately) Availability: Usually Ships in 4 to 5 Weeks Compare $4,599.99 IAG Stage 4 CNC Ported Heads with +1mm GSC Valves: IAG's Stage 4 Cylinder Head Package utilizes a CNC porting program for the WRX STI heads that was developed over the past five years and tested on the most successful high-horsepower Subaru's. The ported... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 4 2015-19 WRX AW20 Ported Cylinder Head Package (Cams / Rockers / Lash Caps Sold Separately) Availability: Usually Ships in 4 to 5 Weeks Compare $4,599.99 IAG's Stage 4 Cylinder Head Package for the 2015-20 WRX utilizes a CNC porting program for the AW20 heads which was developed over the past year and tested on the most successful high-horsepower Subaru's. The ported head package starts with brand new... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 4 CNC Ported Heads w/ +1mm GSC Valves for 02-05 WRX 2.0L S20 (Cams / Lifters Sold Separately) Availability: Usually Ships in 4 to 5 Weeks Compare MSRP: $4,599.99 - $4,799.99 IAG's Stage 4 Cylinder Head Package utilizes a CNC porting program for the S20 heads that was developed over the past five years and tested on the most successful high-horsepower Subaru's. The ported head package starts with brand new S20 WRX OEM head... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 4 CNC Ported Heads w/ +1mm GSC Valves & GSC Camshafts For 06-14 WRX, 07-20 STI, 06-13 FXT, 07-09 LGT Availability: Usually Ships in 4 to 5 Weeks Compare $6,299.99 IAG Stage 4 Ported Heads with +1mm GSC Valves & Cams: IAG's Stage 4 Cylinder Head Package utilizes a CNC porting program for the WRX STI heads that was developed over the past five years and tested on the most successful high-horsepower Subaru's. The... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 4 CNC Ported Heads w/ +1mm GSC Valves & Camshafts for 02-05 WRX 2.0L S20 Availability: Usually Ships in 4 to 5 Weeks Compare MSRP: $5,999.99 - $6,199.99 IAG Stage 4 S20 Ported Heads with +1mm GSC Valves & Cams: IAG's Stage 4 Cylinder Head Package utilizes a CNC porting program for the S20 heads that was developed over the past five years and tested on the most successful high-horsepower Subaru's. The... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 5 CNC Ported Heads w/ +1mm Ferrea Valves For 06-14 WRX, 07-20 STI, 06-10 FXT, 07-09 LGT (Cams / Lifters Sold Separately) Availability: Usually Ships in 4 to 5 Weeks Compare $5,799.99 IAG Stage 5 CNC Ported Cylinder Heads w/ +1mm Ferrea Valves: IAG's Stage 5 Cylinder Head Package utilizes a CNC porting program for the WRX STI heads that was developed over the past five years and tested on the most successful high-horsepower Subaru's... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 5 2015-20 WRX AW20 Ported Cylinder Head Package (Cams / Rockers / Lash Caps Sold Separately) Availability: Usually Ships in 4 to 5 Weeks Compare $5,799.99 IAG's Stage 5 Cylinder Head Package utilizes a CNC porting program for the AW20 heads that was developed over the past five years and tested on the most successful, high-horsepower, Subarus. The ported head package starts with brand new AW20 FA20 WRX DIT... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 5 CNC Ported Heads w/ +1mm Ferrea Valves & S3 GSC Cams for 07-20 STI, 08-14 WRX, 07-12 LGT, 09-13 FXT Availability: Usually Ships in 4 to 5 Weeks Compare $7,479.99 IAG Stage 5 CNC Ported Cylinder Heads: IAG's Stage 5 Cylinder Head Package utilizes a CNC porting program for the Subaru WRX STI heads that was developed over the past five years and tested on the most successful high-horsepower Subaru's. The ported head... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 5 02-05 WRX S20 Casting Cylinder Head Package (Cams / Lifters Sold Separately) Availability: Usually Ships in 4 to 5 Weeks Compare MSRP: $5,799.99 - $5,999.99 IAG's Stage 5 Cylinder Head Package utilizes a CNC porting program for the S20 heads that was developed over the past five years and tested on the most successful high-horsepower Subaru's. The ported head package starts with brand new S20 2002-05 WRX 2... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG Stage 5 02-05 WRX S20 Casting Cylinder Head Package (Includes Cams / Lifters) Availability: Usually Ships in 4 to 5 Weeks Compare MSRP: $7,479.99 - $7,679.99 IAG's Stage 5 Cylinder Head Package utilizes a CNC porting program for the S20 heads that was developed over the past five years and tested on the most successful high-horsepower Subaru's. The ported head package starts with brand new S20 2002-05 WRX... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List