ESS TS2+ 8.5PSI Boost Upgrade Kit

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.

Category: 330i