The following table provides a guide on typical frequency settings.
Engine Description |
Recommended Filter |
Mazda 13B/20B/26B (Bosch aftermarket sensor) |
3.5kHz Narrow Band Filter |
Subaru EJ25 (Bosch aftermarket sensor) |
6kHz Narrow Band Filter |
Subaru EJ20 (Bosch aftermarket sensor) |
6kHz Narrow Band Filter |
Toyota 1UZ-FE (factory sensors) |
6kHz Narrow Band Filter |
Mitsubishi 4G63 (Bosch aftermarket sensor) |
6kHz Narrow Band Filter |
Nissan SR20DET (Bosch aftermarket sensor) |
6kHz Narrow Band Filter |
Toyota 3S-GTE (Bosch aftermarket sensor) |
6kHz Narrow Band Filter |
Mitsubishi Evo 6 Onwards (factory sensor) |
13kHz Narrow Band Filter |
Subaru WRX V7 Onwards (factory sensor) |
13kHz Narrow Band Filter |
Nissan RB26DETT (Bosch aftermarket sensor) |
6kHz or 7kHz Narrow Band Filter |