EMS systems with a "U" designation at the end of the part number include a built-in wideband UEGO controller and Bosch sensor.
| Mazda | ||||
|---|---|---|---|---|
| Year | Model | Application Note | Part Number | |
| w/o UEGO | w/UEGO | |||
| 90-95 | Miata | M/T Only | 30-1710 | |
| 96-97 | Miata | M/T Only | 30-1720 | |
| 93-95 | RX7 | M/T Only | 30-1800 | |