The upgrade your URD Tacoma Mark 3 Stage I supercharger kit to Stage II you will need to purchase this upgrade package and add it to your Stage I kit.
Included items are:
- URD Stainless Mark 3 Cat-Back exhaust system
- URD Competition Y Pipe
- URD Spec-U Equal Length Long Tube Headers
- Rotrex 75mm supercharger pulley
- URD Stage II Calibration file for the UCON-EMS
These items have been bundled together as a package to save cost as compared to buying the items separately.
Once these items are installed with your Stage I supercharger system you will have the Stage II system.