... IN TEMP. SENSOR.3. support cold start.4.Waterproof high5.Wire length to distinguish between each cylinder6.Drawer slide design, adjustment ... and side loading convenience. 7 3,4, 5,6, 8 Cyl models with connector types;8. CE approved ... -50%, which helps to purify the air, reduce the pollution.5.Good market: Products install fast, operate simply, good reliability, cheap ...