2000 Camry V6

[newbe]

I bought this car new and plan to keep it several more years.
What unit is the correct one for this car. Also "on average"
what should I expect as far as a milage increase?

[msdtech2]

The unit that will work for your application is the PN 6215 Dis-4, you may also require the PN 8912 Tach Adapter, and you will need 2 of the adapters. Mileage increase will vary from vehicle to vehicle although it will get better throttle response and performance.
Thanks,
msdtech2