Something strange here... I've a 2008 e90 335xi (sedan) sport package, I've unplugged the actuator cable, and I've not seen any sound difference or so. Then I got the JB4 G5, so I plugged back the actuator cable, and set the CANflap option using menu 4 option 5 (force it open all time). Again, I've not seen any sound difference or so. Any idea why? valve blocked? Thanks.
2008 Jet Black E90 335xi | Sport Package | 6AT / Alpina B3 TCU Flash | JB4 G5 / BMS Speed Delimiter | BMS DCI | CP-E Charge Pipe | VRSF 5" Intercooler | BMW Performance Exhaust | VMR V718 / Kumho | Bilstein Sport / Eibach Pro-Kit | Best 1/4: 12.6@109 | YouTube