ESS TS2 8.5PSI upgrade kit for the ESS TS2 8PSI SC system. This kit requires installation of the ESS FI camshafts and it is recommended to have a set of headers installed as well to take full advantage of the extra airflow generated by this setup. Upgrade kit consists of: -Custom CNC Lysholm SC pulley for higher SC RPM and higher boost pressure. -6PK ContiTech drive belt matched to the new pulley configuration. -Dyno tweaked ESS MS43/45 ECU software matched to 8.5PSI boost and ESS FI cams. This upgrade is only available for manual or SMG equipped vehicles. Correction factor for drivetrain loss is 15% above RWHP as seen in dynograph (RWHP/0.85)
