Closed Deck V4, New Case Halves (Outright) Baffles and storage to flash faster

and storage to flash faster while saving all of your maps and logs

50 State Legal

Greatly increase strength and longevity of the clutch fork by using our forged 4130 clutch fork for the VA WRX

Install Height (in): 1

Closed Deck V4, New Case Halves (Outright) Baffles and storage to flash fasterThis 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