Hummer H2: Ignition & Electronic

This Module eliminates 1st to 4th shifting.

You will need O2 Extensions when installing long tube headers.

MSD WINDOW SWITCH - to activate Nitrous systems for a certain RPM range.

Manually control RPM range by using pills.

Please specify which kit you would like when ordering.

MSD Window Switch Kit 3000 RPM

MSD Window Switch Kit 5000 RPM

MSD Window Switch Kit 6000 RPM