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Supply voltage = 13
2006 Subaru Impreza WRX Sti F4 2
Cryo-treated for improved physical properties
It means more power due to the reduction in oil interfering with the rotation of the crank and allowing it to spin more freely
2011 Subaru Impreza WRX Limited 2
Closed Deck V3, New Case Halves (Outright) Injectors Supply voltage = 13This closed deck block design has been proven to withstand extreme boost levels resulting in high cylinder pressures without the worry of cracking a sleeve. The billet material that reinforces the combustion area has been further optimized with our V3 closed deck making it a far superior product to any sleeved block. With a closed deck block the stock sleeves are still in place eliminating all risk of dropping sleeves and pushing coolant that you have
