What is the best way to install the FAST XFI and keep my factory cluster working for a few of the gauges??

Looking at trying to keep the , Speedo, Fuel Level, Oil Pressure, Battery Voltage


Do i have to still run the factory pcm to talk to the cluster or can i tie the sensors into the xfi, or just tie the sensors straight into the cluster harness at "C210 ,C220, C230"??

 

Wow RT you are not playing are you. Im gladd you still running the M6. I was scared for a second there.