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  1. Cosworth High Performance Head Gaskets for Subaru Impreza WRX STI 2008-2010
    $110.00
    Cosworth High Performance Head Gaskets engineered to seal in power under most demanding condits. Constructed from stainless steel with a folded stopper layer; each application features superior sealing compared to conventional multi layer steel gaskets. Additionally; Cosworth High Performance Head Gaskets manufactured from pre-coated cut stainless steel resulting in uniform coating distribution consistent shape.
    Key Features
    Individual cut layers of stainless steel with superior consistency compared to laser gaskets
    Pre-coated stainless steel with a 0.25 micron layer of nitrile rubber ensures consistent distribution of coating with no high or areas
    Manufacturing dimensional tolerance of 0.001
    Die manufacturing process ensures smooth edges; unlike laser gaskets
    Cosworth's gaskets feature a folded stopper layer additional torque around each cylinder. width of sealing area is specific each application thereby providing ultimate sealing properties
    Available in a range of thicknesses specific applications Learn More
  2. Cosworth High Performance Head Gaskets for Subaru Impreza WRX STI 2008-2010
    $110.00
    Cosworth High Performance Head Gaskets engineered to seal in power under most demanding condits. Constructed from stainless steel with a folded stopper layer; each application features superior sealing compared to conventional multi layer steel gaskets. Additionally; Cosworth High Performance Head Gaskets manufactured from pre-coated cut stainless steel resulting in uniform coating distribution consistent shape.
    Key Features
    Individual cut layers of stainless steel with superior consistency compared to laser gaskets
    Pre-coated stainless steel with a 0.25 micron layer of nitrile rubber ensures consistent distribution of coating with no high or areas
    Manufacturing dimensional tolerance of 0.001
    Die manufacturing process ensures smooth edges; unlike laser gaskets
    Cosworth's gaskets feature a folded stopper layer additional torque around each cylinder. width of sealing area is specific each application thereby providing ultimate sealing properties
    Available in a range of thicknesses specific applications Learn More
  3. Cosworth High Performance Long Block Assemblies for Subaru Impreza WRX STI 2008-2010
    $16,343.00
    The Cosworth Subaru EJ25 CS600 series is designed extreme track use the demanding performance enthusiast. Each assembly is precision built by of Cosworths skilled craftsmen using finest components from parts catalog to ensure maximum reliable power performance. Starting with a Subaru EJ257 semi closed deck block; we meticulously hone each bore to guarantee perfect piston to cylinder wall clearance. block is then assembled with Forged Pistons; motorsport grade Forged H Beam connecting rods along with high performance and main bearings a STI Forged crankshaft. maximum performance; an optional steel billet crank is available (CS600X). Once cylinder block assembly is completed; we install a pair of CNC machine port-bored Valve Cylinder heads with proven S2 camshafts complete with valve lash to specifications. cylinder heads secured with high performance 11mm steel studs sealed with a Cosworth high performance stopper layer steel head gasket. Finally; we install of blue-printed; high pressure pumps maximum lubrication. This proven engine combination been used by teams to events in both North Americaand Europe.
    Key Features
    New Subaru EJ25 engine
    New Subaru EJ25 Forged Crankshaft
    Optional Billet Cosworth Crankshaft (CS600X)
    Cosworth Forged H-beam Connecting Rods
    Cosworth Forged Pistons rings
    Cosworth motorsport Tri-metal bearings
    Balanced to within gram
    Complete blue-print assembly
    Enlarged Intake Exhaust ports
    Large diameter stainless steel intake valves
    Large diameter Inconel exhaust valves
    Hi Rev; Dual valve springs
    Titanium Retainers
    Hardened Steel spring platforms.
    Multi angle valve job
    CNC Machined port finish
    Knife edge port divider
    Cosworth S2 High lift camshafts
    Valve lash set
    Cosworth high pressure pump
    Cam covers
    Cosworth serial number Learn More
  4. Cosworth High Performance Long Block Assemblies for Subaru Impreza WRX STI 2008-2010
    $16,343.00
    The Cosworth Subaru EJ25 CS600 series is designed extreme track use the demanding performance enthusiast. Each assembly is precision built by of Cosworths skilled craftsmen using finest components from parts catalog to ensure maximum reliable power performance. Starting with a Subaru EJ257 semi closed deck block; we meticulously hone each bore to guarantee perfect piston to cylinder wall clearance. block is then assembled with Forged Pistons; motorsport grade Forged H Beam connecting rods along with high performance and main bearings a STI Forged crankshaft. maximum performance; an optional steel billet crank is available (CS600X). Once cylinder block assembly is completed; we install a pair of CNC machine port-bored Valve Cylinder heads with proven S2 camshafts complete with valve lash to specifications. cylinder heads secured with high performance 11mm steel studs sealed with a Cosworth high performance stopper layer steel head gasket. Finally; we install of blue-printed; high pressure pumps maximum lubrication. This proven engine combination been used by teams to events in both North Americaand Europe.
    Key Features
    New Subaru EJ25 engine
    New Subaru EJ25 Forged Crankshaft
    Optional Billet Cosworth Crankshaft (CS600X)
    Cosworth Forged H-beam Connecting Rods
    Cosworth Forged Pistons rings
    Cosworth motorsport Tri-metal bearings
    Balanced to within gram
    Complete blue-print assembly
    Enlarged Intake Exhaust ports
    Large diameter stainless steel intake valves
    Large diameter Inconel exhaust valves
    Hi Rev; Dual valve springs
    Titanium Retainers
    Hardened Steel spring platforms.
    Multi angle valve job
    CNC Machined port finish
    Knife edge port divider
    Cosworth S2 High lift camshafts
    Valve lash set
    Cosworth high pressure pump
    Cam covers
    Cosworth serial number Learn More
  5. Cosworth High Performance Long Block Assemblies for Subaru Impreza WRX STI 2008-2010
    $16,343.00
    The Cosworth Subaru EJ25 CS600 series is designed extreme track use the demanding performance enthusiast. Each assembly is precision built by of Cosworths skilled craftsmen using finest components from parts catalog to ensure maximum reliable power performance. Starting with a Subaru EJ257 semi closed deck block; we meticulously hone each bore to guarantee perfect piston to cylinder wall clearance. block is then assembled with Forged Pistons; motorsport grade Forged H Beam connecting rods along with high performance and main bearings a STI Forged crankshaft. maximum performance; an optional steel billet crank is available (CS600X). Once cylinder block assembly is completed; we install a pair of CNC machine port-bored Valve Cylinder heads with proven S2 camshafts complete with valve lash to specifications. cylinder heads secured with high performance 11mm steel studs sealed with a Cosworth high performance stopper layer steel head gasket. Finally; we install of blue-printed; high pressure pumps maximum lubrication. This proven engine combination been used by teams to events in both North Americaand Europe.
    Key Features
    New Subaru EJ25 engine
    New Subaru EJ25 Forged Crankshaft
    Optional Billet Cosworth Crankshaft (CS600X)
    Cosworth Forged H-beam Connecting Rods
    Cosworth Forged Pistons rings
    Cosworth motorsport Tri-metal bearings
    Balanced to within gram
    Complete blue-print assembly
    Enlarged Intake Exhaust ports
    Large diameter stainless steel intake valves
    Large diameter Inconel exhaust valves
    Hi Rev; Dual valve springs
    Titanium Retainers
    Hardened Steel spring platforms.
    Multi angle valve job
    CNC Machined port finish
    Knife edge port divider
    Cosworth S2 High lift camshafts
    Valve lash set
    Cosworth high pressure pump
    Cam covers
    Cosworth serial number Learn More
  6. Cosworth High Performance Long Block Assemblies for Subaru Impreza WRX STI 2008-2010
    $12,112.00
    The Cosworth Subaru EJ25 CS600 series is designed extreme track use the demanding performance enthusiast. Each assembly is precision built by of Cosworths skilled craftsmen using finest components from parts catalog to ensure maximum reliable power performance. Starting with a Subaru EJ257 semi closed deck block; we meticulously hone each bore to guarantee perfect piston to cylinder wall clearance. block is then assembled with Forged Pistons; motorsport grade Forged H Beam connecting rods along with high performance and main bearings a STI Forged crankshaft. maximum performance; an optional steel billet crank is available (CS600X). Once cylinder block assembly is completed; we install a pair of CNC machine port-bored Valve Cylinder heads with proven S2 camshafts complete with valve lash to specifications. cylinder heads secured with high performance 11mm steel studs sealed with a Cosworth high performance stopper layer steel head gasket. Finally; we install of blue-printed; high pressure pumps maximum lubrication. This proven engine combination been used by teams to events in both North Americaand Europe.
    Key Features
    New Subaru EJ25 engine
    New Subaru EJ25 Forged Crankshaft
    Optional Billet Cosworth Crankshaft (CS600X)
    Cosworth Forged H-beam Connecting Rods
    Cosworth Forged Pistons rings
    Cosworth motorsport Tri-metal bearings
    Balanced to within gram
    Complete blue-print assembly
    Enlarged Intake Exhaust ports
    Large diameter stainless steel intake valves
    Large diameter Inconel exhaust valves
    Hi Rev; Dual valve springs
    Titanium Retainers
    Hardened Steel spring platforms.
    Multi angle valve job
    CNC Machined port finish
    Knife edge port divider
    Cosworth S2 High lift camshafts
    Valve lash set
    Cosworth high pressure pump
    Cam covers
    Cosworth serial number Learn More
  7. Cosworth High Performance Long Block Assemblies for Subaru Impreza WRX STI 2008-2010
    $16,343.00
    The Cosworth Subaru EJ25 CS600 series is designed extreme track use the demanding performance enthusiast. Each assembly is precision built by of Cosworths skilled craftsmen using finest components from parts catalog to ensure maximum reliable power performance. Starting with a Subaru EJ257 semi closed deck block; we meticulously hone each bore to guarantee perfect piston to cylinder wall clearance. block is then assembled with Forged Pistons; motorsport grade Forged H Beam connecting rods along with high performance and main bearings a STI Forged crankshaft. maximum performance; an optional steel billet crank is available (CS600X). Once cylinder block assembly is completed; we install a pair of CNC machine port-bored Valve Cylinder heads with proven S2 camshafts complete with valve lash to specifications. cylinder heads secured with high performance 11mm steel studs sealed with a Cosworth high performance stopper layer steel head gasket. Finally; we install of blue-printed; high pressure pumps maximum lubrication. This proven engine combination been used by teams to events in both North Americaand Europe.
    Key Features
    New Subaru EJ25 engine
    New Subaru EJ25 Forged Crankshaft
    Optional Billet Cosworth Crankshaft (CS600X)
    Cosworth Forged H-beam Connecting Rods
    Cosworth Forged Pistons rings
    Cosworth motorsport Tri-metal bearings
    Balanced to within gram
    Complete blue-print assembly
    Enlarged Intake Exhaust ports
    Large diameter stainless steel intake valves
    Large diameter Inconel exhaust valves
    Hi Rev; Dual valve springs
    Titanium Retainers
    Hardened Steel spring platforms.
    Multi angle valve job
    CNC Machined port finish
    Knife edge port divider
    Cosworth S2 High lift camshafts
    Valve lash set
    Cosworth high pressure pump
    Cam covers
    Cosworth serial number Learn More
  8. Cosworth High Performance Long Block Assemblies for Subaru Impreza WRX STI 2008-2010
    $12,112.00
    The Cosworth Subaru EJ25 CS600 series is designed extreme track use the demanding performance enthusiast. Each assembly is precision built by of Cosworths skilled craftsmen using finest components from parts catalog to ensure maximum reliable power performance. Starting with a Subaru EJ257 semi closed deck block; we meticulously hone each bore to guarantee perfect piston to cylinder wall clearance. block is then assembled with Forged Pistons; motorsport grade Forged H Beam connecting rods along with high performance and main bearings a STI Forged crankshaft. maximum performance; an optional steel billet crank is available (CS600X). Once cylinder block assembly is completed; we install a pair of CNC machine port-bored Valve Cylinder heads with proven S2 camshafts complete with valve lash to specifications. cylinder heads secured with high performance 11mm steel studs sealed with a Cosworth high performance stopper layer steel head gasket. Finally; we install of blue-printed; high pressure pumps maximum lubrication. This proven engine combination been used by teams to events in both North Americaand Europe.
    Key Features
    New Subaru EJ25 engine
    New Subaru EJ25 Forged Crankshaft
    Optional Billet Cosworth Crankshaft (CS600X)
    Cosworth Forged H-beam Connecting Rods
    Cosworth Forged Pistons rings
    Cosworth motorsport Tri-metal bearings
    Balanced to within gram
    Complete blue-print assembly
    Enlarged Intake Exhaust ports
    Large diameter stainless steel intake valves
    Large diameter Inconel exhaust valves
    Hi Rev; Dual valve springs
    Titanium Retainers
    Hardened Steel spring platforms.
    Multi angle valve job
    CNC Machined port finish
    Knife edge port divider
    Cosworth S2 High lift camshafts
    Valve lash set
    Cosworth high pressure pump
    Cam covers
    Cosworth serial number Learn More
  9. Cosworth Big Valve Cylinder Heads for Subaru Impreza WRX STI 2008-2010
    $5,911.00
    For over 40 years; Cosworth's been leader in innovative multi valve cylinder head design both racing high performance production cars. Cosworth Ported Valve Cylinder head range is latest advancement. Modified from OE cylinder head castings; substantial flow improvements upgraded valve train components offer superior performance your high performance engine.
    Each original cylinder head design is carefully evaluated tested to establish improvements required to meet target performance level. Hours of testing flow bench validation used to determine best advanced port design yielding maximum usable power response. However; there is more to cylinder head design than just maximum flow. It is critical that port velocits maintained to ensure drivability valve train components matched to guarantee reliable performance. Once of these factors have been tested validated; final port contour is digitized. Using digitized program; we then reshape both intake exhaust ports using axis mill producing an accurate consistent port shape every time. In addition to reshaping enlarging intake exhaust ports; most Valve Cylinder heads feature a re-shaped combustion chamber to un-shroud valves increasing flow performance. After machining; each cylinder head receives a multiangle high performance valve on precision valve seat cutter. Then each cylinder head is ultrasonically; cleaned; serialized then hand assembled with select high performance valve train components; ready to install on your engine.
    Key Features
    All OE Castings
    Enlarged Intake Exhaust ports
    Large diameter stainless steel intake valves
    Large diameter Inconel exhaust valves
    Hi Rev; Dual valve springs
    Titanium Retainers
    Hardened Steel spring platforms
    Reshaped combustion chamber on most applications
    Flow bench proven design
    Dyno tested
    Machined Cosworth Logo
    Precision Multi angle valve job
    Pre-assembled; ready to install
    Machined port bore finish
    Knife edge port divider Learn More
  10. Cosworth ECPro for Subaru Impreza WRX STI 2004-2010
    $19.00
    The Cosworth ECPro is a higher performance solution engine management. Engineered in conjunction with Pectel Control Systems; Cosworth ECPro features an compatible harness connector a full base calibration allowing to go straight to dyno without workload of full and vehicle configuration.
    The Cosworth ECPro is perfect demanding applications such as track day; rally motorsport and is housed in a machined from solid aluminum case with professional motorsport specification electronics. />Features
    Designed full harness system integration Plug Perform. Base calibration supplied to a stock engine. There is no need replacement of wiring harness or sensors. Makes of dash diff controller
    56Mhz processor. Higher performance timing accuracy control Ethernet comms Fast data offload high quality data viewing on PC
    Internal logging memory. configured logging channel configuration at optimum rates performance analysis by your dealer. User define specific logging configurations. on board internal memory up to 2;000Hz of logging bandwidth is standard.
    Knock monitoring Control. Advanced knock processing chip offers industry leading advanced knock signal filtration signal processing. MIL lamp indication of Detonation levels (witser defined levels based on and Boost).
    Calibration select. (e.g. Fuel save; Test; Race) of OEM SI Drive switch selection of 3 alternate calibrations (calibration selectable boost; fuelling; ignition;rev limit; setting; VCAM target; Fly-By-Wire pedal mapping; overrun fuelling cut-off individually selectable Intelligent; Sports; Sports-Sharp).
    Pectel (Anti System) switch (cruise control button) used ALS mode select.
    Analog Inputs external sensors. Additional pressure transducers; temperature sensors; digital inputs be wired into EC for logging additional engine parameters and/or additional control strategies. number of analog inputs depends on specific model.
    Closed Loop Boost Control. Full closed loop or open loop boost control PID parameters solenoid duty cycle map. Closed loop boost levels also selectable calibration select (see above).
    Standard Motorsport Design. Machined billet aluminum case professional motorsports specification electronics.
    OEM Narrow Band Supported be disabled by user.
    External Wideband Supported. Compatible with wideband units with 0-5v analog output.
    Internal Wideband Supported. kit Requires Cosworth by Pectel sensor; requires 3 extra populations 2 relocating. blank pins on harness populating.
    Variable CAM. Pre-configured full quad camshaft support />External Comms Support. Optional Motorsport dash center differential controller.
    Designed Racing OBDII Motorsport us Learn More

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