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Ryan Swinney says: this product looks great, makes your car run much cooler and pull harder. It was kind of difficult to install. But all in all a good product ..
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Cosworth Forged Piston Set 100mm for 81mm Crank Subaru WRX STI 2.6L EJ25 04-12
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Price: $867.00   Sale: $810.65
  Model: 20003684
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Cosworth Forged Piston Set 100mm Subaru WRX STI 2.6L EJ25 04+

The piston is one of the most important components within the engine. It can be subjected to directional change up to 285 times every second and must withstand acceleration forces of 8500g. Cosworth high performance forged pistons are designed and engineered to withstand this type of punishment and still perform. All Cosworth pistons are manufactured using the same methods as our Formula One pistons and include features such anti scuff skirt coating, ulta-strong pins, polished top and patented anti-detonation bands. Additionally, each application uses a unique forging to minimize weight and ensure the strongest possible piston design

- Unique forgings for each application
- Xylan Anti scuff skirt coating
- Polished tops (reduced carbon build up and stress relief)
- Manufactured from proprietary alloy (CosAl 010)
- Ultra strong pin
- Patented anti-detonation bands
- Bore size = 100mm
- 8.2:1 Compression ratio (nominal)
- Rings not included (use part number 20001515)
- For use with 81mm crankshaft
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About Manufacturer: Cosworth
Over the last 50 years Cosworth have developed an in-depth knowledge of engines, electronics and a range of high performance technologies. This has been used to supply some of the most successful motor sport teams and vehicle manufacturers in history.

Our unprecedented success has fueled customer demand globally from diverse market sectors designing and developing technologies and components for aerospace, automotive, defense and sport applications.


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