ATI ProCharger F-3R-112/121 Head Unit To F-3R-136 Head Unit Send-In Upgrade Service

This is an ATI / ProCharger F-3R-112/121 Head unit send-in service upgrading your headunit to the F-3R-136 head unit! This service is perfect for those looking to upgrade their current head unit.

Note: This does not include the F-3R-112/121 head unit, this is a send-in service to upgrade your F-3R-112/121 head unit to the F-3R-136 head unit.

ProCharger F-3R-136 Upgrade Specs:
Maximum Supercharged HP Rating: 3,000 HP (Compared to the F-3R-112/121 Head unit 2100-2400HP) 
Maximum Airflow: 4,000 cfm (Compared to the F-3R-112/121 Head unit 2,300-3,100 cfm) 
Maximum Boost: 50 psi (Compared to the F-3R-112/121 Head unit 38-40 psi) 
Inlet Diameter: 5.75 inches
Outlet Diameter: 4 inches
Maximum Impeller RPM: 72,000
Internal Step-up Ratio: 5.63:1
Self-Contained Oiling: Yes
Reverse Rotation Available: Yes