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Ken Stevens says: I installed a set of these to my 2006 Cayman S, wow what a difference. The front is not adjustable but the rear is. By setting the rear on the loosest setting I found the car maintained a good front/r ..
5 of 5 Stars!

eduardo says: I purchased Cobb Accessport and it made a huge difference in performance. Also helped with a CEL I had from an aftermarket down pipe. I have made all my purchases from vivid racing and will continue t ..
5 of 5 Stars!

Kelley says: Amazing part! Its unbelievable what a difference this makes over the stock 17mm bar in the wrx. Best handling mod i've purchased so far. Extremely satisfied with the outcome. Highly recommend it. ..
5 of 5 Stars!

evan smith says: Cosworth bearings should be the only bearings going into your rebuild on that evo!! ..
5 of 5 Stars!

Randy Spjut says: I love these wheels! I went from my stock 18" wheels to these wider 20" matte graphite CV3's and they look outstanding on my '07 350Z. I've had plenty of compliments on the wheels in just a few weeks ..
5 of 5 Stars!


Cosworth High Performance Short Block w/Billet Crank 9.2:1 CR 81mm Subaru EJ25 04-12
  • Cosworth High Performance Short Block w/Billet Crank 9.2:1 CR 81mm Subaru EJ25 04-12
  • Cosworth High Performance Short Block w/Billet Crank 9.2:1 CR 81mm Subaru EJ25 04-12
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  Product Information
Price: $9,455.00   Sale: $8,840.43
  Model: 20007697
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The Cosworth EJ25 (STI) short block has gone through countless hours of dyno evaluation to determine the best combination of parts to guarantee performance and reliability. Each EJ25 short block starts with a brand new Subaru case. The case is inspected and then the bores are "Diamond" honed to perfection to receive High Compression Cosworth Forged Pistons.

Cosworth then balance the rotating assembly that includes a Cosworth 81mm billet stroker crank and Cosworth Forged H-Beam Connecting Rods to within .5 gram. The select parts are professionally assembled by one of Cosworths skilled engine builders using their own, tri metal race spec bearings.

For added performance, call us about Cosworth CNC ported Big Valve Cylinder Heads and high performance camshafts.

Features:
  • New Subaru EJ25 STI Engine case
  • Billet 81mm Stroker Crankshaft
  • Cosworth Forged H-beam Connecting Rods
  • Cosworth Forged High Compression Pistons and rings
  • Cosworth Tri-metal bearings
  • Balanced to within .5 gram
  • Complete blue-print assembly
  • Ring gap checked
  • Bearing clearance checked
  • Diamond Honed
  • Deck height checked
  • Connecting Rod side clearance checked
  • Crankshaft end float checked
  • Shipped with protective covers
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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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