IAG Fire-Lock 2.5L Subaru Head Gaskets (1 Pair W/ Fire-Lock Rings) For EJ25 / EJ257 100mm .051" For 14mm Head Studs

IAG Fire-Lock 2.5L Head Gaskets (1 Pair with Fire-Lock Rings) For 14mm Head Studs Only- Note Machine Work with IAG is REQUIRED. Our proprietary "Fire-Lock™" Head gasket system has been proven in our record-setting race cars to be the strongest Subaru head gasket system ever produced. To achieve these results, our engineers separated the combustion chamber sealing from the fluid sealing aspects of the head gaskets. These gaskets have been tested in excess of 1000 horsepower. This solution is loosely derived from diesel technology where a counterbore step is machined around each cylinder bore allowing specially sized fire rings to drop into the machined area and head gasket bores. The shims are designed to create a compression seal once the heads are installed and torqued into place. The gaskets are manufactured from an asbestos-free composite raw material and feature silicone-based beading applied to critical areas to improve sealing around all water and oil passages. The combination of the alloy compression shims and gaskets assures maximum sealing for a Subaru EJ25 turbocharged engine. Features: Composite Material, IAG-Spec Alloy Ring, Specifically designed for 14mm Head Studs, Silicone Beading, 100mm Bore, .051" Thickness, Intended for High Horsepower, High Boost applications.

• Unique Fire-Lock Rings help contain extreme cylinder pressures. Cylinder liners must be machined to accept the fire-lock rings.

Vehicle Specific

• Subaru: Baja 2004 - 2006 Subaru: Forester 2004 - 2013 Subaru: Impreza 2004 - 2014 Subaru: Legacy 2005 - 2013 Subaru: Outback 2005 - 2009 Subaru: WRX 2012 - 2016 Subaru: WRX STI 2013 - 2021

Attributes:

• Brand Name: IAG Performance
• GTIN: 00887753911629
• Color: Gray
• Configuration: Two Piece
• Cylinder Bore Diameter: 100
• Gasket Sealant Included: No
• Grade Type: Performance
• Material: Composite with Silicone Beading
• O-Ring Material: Alloy
• Thickness: 0.051

Extended Information:

• Country of Origin: US
• Emissions : Announced
• Life Cycle Status: Available To Order

Packing Information:

• Quantity of Each: 1
• Package UOM: EA
• Dimension: 13 x 8.5 x 0.5 inches
• Weight: 0.7 POUNDS