Outfront Motorsports 775 Closed Deck Short Block FA20 Timing Parts Individual cylinder ignition retard and

Individual cylinder ignition retard and fuel enrich

keeping intake temperatures lower for improved performance

The V25B Single AVCS Castings are for 2007 STI

plus a simple setup

this one also uses a screen to match the OEM spec opening size of the mesh

Outfront Motorsports 775 Closed Deck Short Block FA20 Timing Parts Individual cylinder ignition retard andThis 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 block in the known problem areas 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