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20002315
Cosworth 79mm Stroke Billet Crankshaft Subaru WRX STI 2.5L EJ25
List Price: $3899.00
Our Price: $3860.99
You Save: $38.01
Cosworth 79mm Stroke Billet Crankshaft Subaru WRX STI 2.5L EJ25
Increased engine performance often means increased engine speed and load. Original factory crankshafts may not be able to withstand the added stress resulting in catastrophic failure. Cosworth billet crankshafts are machined from ultra strong EN40B steel and are engineered to endure the harshest conditions and have been tested to withstand over 1000HP! Features include superior lubrication, profiled counterweights and added strength.
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KK3670
Cosworth Big Valve Cylinder Head Subaru WRX STI 2.5L EJ25
List Price: $4100.00
Our Price: $4049.99
You Save: $50.01
Cosworth Big Valve Cylinder Head Subaru WRX STI 2.5L EJ25
Cosworth CNC ported cylinder heads feature dyno tested and flow bench proven ports, engineered for maximum usable power. Each new cylinder head is ported on a 5 axis machine to ensure consistency and perfect port shape every time. Additionally, larger intake (+1mm) and exhaust valves (+1mm) are utilized to help increase flow. Cosworth CNC ported Big Valve cylinder heads come complete with a performance valve job, hi rev (max 10,500rpm) valve...
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20001699
Cosworth Big Valve Cylinder Head Subaru WRX STI 2.5L EJ25 2007
List Price: $4100.00
Our Price: $4049.99
You Save: $50.01
Cosworth Big Valve Cylinder Head Subaru WRX STI 2.5L EJ25 2007
Cosworth CNC ported cylinder heads feature dyno tested and flow bench proven ports, engineered for maximum usable power. Each new cylinder head is ported on a 5 axis machine to ensure consistency and perfect port shape every time. Additionally, larger intake (+1mm) and exhaust valves (+1mm) are utilized to help increase flow. Cosworth CNC ported Big Valve cylinder heads come complete with a performance valve job, hi rev (max 10,500rpm)...
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SB8010
Cosworth Big Valve Cylinder Head w/ Camshafts Subaru WRX STI EJ25 2.5L 04-06
List Price: $5700.00
Our Price: $5649.99
You Save: $50.01
Cosworth Big Valve Cylinder Head w/ Camshafts Subaru WRX STI EJ25 2.5L 04-06
Cosworth CNC ported cylinder heads feature dyno tested and flow bench proven ports, engineered for maximum usable power. Each new cylinder head is ported on a 5 axis machine to ensure consistency and perfect port shape every time. Additionally, larger intake (+1mm) and exhaust valves (+1mm) are utilized to help increase flow. Cosworth CNC ported Big Valve cylinder heads come complete with a performance valve job, hi rev...
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20002024
Cosworth Big Valve Cylinder Head w/ Camshafts Subaru WRX STI EJ25 2.5L 2007
List Price: $5700.00
Our Price: $5649.99
You Save: $50.01
Cosworth Big Valve Cylinder Head w/ Camshafts Subaru WRX STI EJ25 2.5L 2007
Cosworth CNC ported cylinder heads feature dyno tested and flow bench proven ports, engineered for maximum usable power. Each new cylinder head is ported on a 5 axis machine to ensure consistency and perfect port shape every time. Additionally, larger intake (+1mm) and exhaust valves (+1mm) are utilized to help increase flow. Cosworth CNC ported Big Valve cylinder heads come complete with a performance valve job, hi rev...
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KK3928
Cosworth Blueprinted Oil Pump Subaru WRX STI 02-06
List Price: $275.00
Our Price: $273.00
You Save: $2.00
Cosworth Blueprinted Oil Pump Subaru WRX STI 02-06
Each pump is disassembled and inspected. Oil galleys are then honed to ensure unobstructed flow. We then incorporate a modified pressure relief valve to maintain pressure stability throughout the rpm range. Note: Flow rate is unchanged. This is an essential item on any high performance engine.
Includes High pressure relief valve and Installation Kit.
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PR7426
Cosworth Case Bolt Set Subaru WRX/STI EJ20/EJ25
Our Price: $498.99
Cosworth Case Bolt Set Subaru WRX/STI EJ20/EJ25
Fasteners are one of the most vital engine component for high performance and racing use. We use the highest quality, race proven material to ensure maximum performance and unlike original equipment hardware, ours can be re-used....
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SB8008
Cosworth CS600 Long Block Assembly Subaru STI EJ25 Eur. spec
List Price: $11980.99
Our Price: $11988.99
Cosworth CS600 Long Block Assembly Subaru STI EJ25 Europe/Asia spec
After several years of testing and development, the Cosworth CS600 series High Performance Subaru EJ25 long block has arrived. The CS600 series is designed for extreme track day use and the demanding performance enthusiast. Each assembly is precision built by one of Cosworth skilled craftsmen using the finest components from our parts catalog to ensure maximum reliable power and performance. Starting with a new Subaru EJ257 semi closed deck block, we...
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20000161
Cosworth CS600 Long Block Assembly Subaru STI EJ25 US spec
Our Price: $11998.99
Cosworth CS600 Long Block Assembly Subaru STI EJ25 US spec
After several years of testing and development, the Cosworth CS600 series High Performance Subaru EJ25 long block has arrived. The CS600 series is designed for extreme track day use and the demanding performance enthusiast. Each assembly is precision built by one of Cosworth skilled craftsmen using the finest components from our parts catalog to ensure maximum reliable power and performance. Starting with a new Subaru EJ257 semi closed deck block, we...
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20000160
Cosworth CS600X Long Block Assembly Subaru STI EJ25 Eur. spec
Our Price: $15898.99
Cosworth CS600X Long Block Assembly Subaru STI EJ25 Europe/Asia spec
After several years of testing and development, the Cosworth CS600 series High Performance Subaru EJ25 long block has arrived. The CS600 series is designed for extreme track day use and the demanding performance enthusiast. Each assembly is precision built by one of Cosworth skilled craftsmen using the finest components from our parts catalog to ensure maximum reliable power and performance. Starting with a new Subaru EJ257 semi closed deck block, we...
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