EJ25

ARP Custom Age 625+ 3/8x1.500" connecting rod bolt

ARP are a manufacturer of fasteners / bolts found in engines and drivelines, ranging from OEM replacement parts to specialty hardware for racing applications.
ARP is the world leader in fastener technology.
ARP Pro series connecting rod bolts are precision CNC-machined to exacting specifications and designed for optimum reliability. They are heat-treated and threads are rolled to provide up to ten times more fatigue strength. This makes them far superior to standard OEM fasteners in terms of durability, and fully capable of handling the extra stress of high-combustion engines.

€57.00

Subaru 2.0 2.5 16V EJ20 EJ25 ARP cylinder head stud kit 260-4701

ARP is a manufacturer of fasteners/bolts found in engines and drivelines, ranging from OEM replacement parts to specialty hardware for racing applications. ARP is the world leader in fastener technology.

€399.00

Subaru 2.0 2.5 16V EJ20 EJ25 ARP main bolt kit 260-5401

ARP is a manufacturer of fasteners/bolts found in engines and drivelines, ranging from OEM replacement parts to specialty hardware for racing applications. ARP is the world leader in fastener technology.

€769.00

Cometic Subaru Sti EJ257 DOHC Engine gasket kit PRO2048C

COMETIC StreetPro Kits cater to the budget-minded street-rodder who is looking to purchase a kit with all necessary gaskets and seals needed for their rebuild. StreetPro gasket kits are sold as a top-end kits and bottom-end kits. Purchase both top- and bottom-end kits for a total engine rebuild. Quality gasket materials are a priority in StreetPro kits. Kit materials include: MLS, AFM, Aramid Fiber, and Armor Clad.

€479.99

Cometic Subaru EJ255/EJ257 04-12 2.5L DOHC MLS Cylinder Head Gasket kit...

COMETIC MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for today's high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flouroelastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements.

€199.00

Cometic Subaru EJ255/EJ257 04-12 2.5L DOHC MLS Cylinder Head Gasket kit...

COMETIC MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for today's high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flouroelastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements.

€199.00

Cometic Subaru EJ25 2.5 16V MLX cylinder head gasket 101x1mm C4578-040

COMETIC MLX (Multi-Layer Stopper) gaskets utilize an integrated stopper layer for combustion chamber sealing and improved clamp load around the cylinder without increasing bore distortion. MLX technology can be found in some head gaskets and are made from the same materials as our MLS Head Gaskets. No sealants or re-torque required.

€229.00

Cometic Subaru EJ25 2.5 16V MLX cylinder head gasket 101x1.32mm C4578-052

COMETIC MLX (Multi-Layer Stopper) gaskets utilize an integrated stopper layer for combustion chamber sealing and improved clamp load around the cylinder without increasing bore distortion. MLX technology can be found in some head gaskets and are made from the same materials as our MLS Head Gaskets. No sealants or re-torque required.

€229.00

Subaru 2.5 EJ25 EJ257 Athena MLS cylinder head gasket set 100x1.3mm 338255R

Athena Racing 338 series multilayer steel (MLS) cylinder head gasket set.
Athena MLS gaskets are designed to suit the requirements of today’s competition engines offering enhanced sealing compared to the OEM product. The gaskets are assembled from 2-5 layers of high quality stainless and spring steels.
Part number: 338255R (2 pcs.)
Gasket thickness: 1.30mm
Bore size: 100.00mm

Part number starting with 338
Athena advantages
Optimized radius embossing shape	The round shape of the embossing increases sealing on cylinder bore, oil and cooling water passages and improves spring back strength
Advanced stopper technology	State of the technology enhances sealing pressure around the cylinder. Highest sealing properties in high power engines
Coating technology	Designed & engineered by Athena the special coating applied on steel surfaces, improves temperature resistance & reliability of the head gasket

€149.00

Subaru WRX 2.5 EJ25 EJ257 Athena Cooper Ring cylinder head gasket set...

Athena Racing 330 series Cooper Ring cylinder head gasket set.
For specific high horsepower applications, engine performance can be significantly improved by using Athena Cooper Ring gaskets, that are supplied with INOX steel ring. This technology outperforms conventional fire ring solutions.
Cooper Rings are oversize (also fits for oversize bores).
Part number: 330040R (2 pcs.)
Gasket thickness: 1.20mm
Bore size: 100.00mm

Part number starting with 330
Athena advantages
Reinforced material	Asbestos free composite raw material OE approved
Stainless steel ring (AISI304)	Separate stainless steel rings assure maximum sealing around cylinder bore also on NOS and/or turbo charged engine where boost is over 2 bars. No head and block machining required
Silicon beading	Silicon-based beading is applied on critical areas to improve sealing around all cooling water and oil passages

€279.00

Subaru WRX 2.5 EJ25 EJ257 Athena Cooper Ring cylinder head gasket set...

Athena Racing 330 series Cooper Ring cylinder head gasket set.
For specific high horsepower applications, engine performance can be significantly improved by using Athena Cooper Ring gaskets, that are supplied with INOX steel ring. This technology outperforms conventional fire ring solutions.
Cooper Rings are oversize (also fits for oversize bores).
Part number: 330066R (2 pcs.)
Gasket thickness: 1.20mm
Bore size: 101.30mm

Part number starting with 330
Athena advantages
Reinforced material	Asbestos free composite raw material OE approved
Stainless steel ring (AISI304)	Separate stainless steel rings assure maximum sealing around cylinder bore also on NOS and/or turbo charged engine where boost is over 2 bars. No head and block machining required
Silicon beading	Silicon-based beading is applied on critical areas to improve sealing around all cooling water and oil passages

€279.00

Subaru WRX 2.5 16V EJ257 JE Pistons CR 8.5 99.75mm 296348

Product detailed specification
Bore size	99.75mm
Stroke	79.00mm
JE Pistons compression ratio (CR)	8.5:1
OEM compression ratio (CR)	8.0:1
Dome volume (CC)	-16.9cm³
Compression height (CH)	30.70mm
Pin diameter	23mm
Features	Accepts Turbo and Nitrous; FSR series Skirt
Fits for	Subaru Impreza WRX STI - 2.5 16V (EJ257)

€899.01