Closed Deck V4, New Case Halves (Outright) EJ spring Kits 5L 4AT 4WD Sedan 2005

5L 4AT 4WD Sedan 2005

The disc is generally smaller and thinner than the OEM disc making for lower inertia and therefore quicker

2011 Subaru Impreza WRX 2

2005-2009 Legacy GT

Closed Deck V4, New Case Halves (Outright) EJ spring Kits 5L 4AT 4WD Sedan 2005This 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 V4 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