by RichD » Wed Aug 30, 2017 7:46 am
There are no resistors in the RF filter, the things that look like resistors are chokes (inductors), the other components are capacitors. The chokes are wired in series between the guide and the motor, with older cars they were soldered directly to the motor, now they are on the small circuit board that also contains the reversing switch. Years ago a choke might burn out, so the car would no longer run. I have not heard of that happening lately. The capacitors would not have any impact on the car's performance, the chokes do have a little resistance, so they would have a minor impact on power and braking, providing that they are not burned out.
In the past a filter network was required in cars that might be sold in Europe, now that is also required in the US.
If your cars now have less braking it is not because the RF filter components have been removed.