Does anyone have an exhaust cutout?

Wondering if anyone uses an exhaust cutout. any problems with them? do they leak or go bad?

The electric ones have a rep of breaking but the cool factor is very high.

They have made great strides in the motors of the electric ones over the years. We have not heard of any failures on the ones we sell (QTEC). Over a long period of time, any electric motor will eventually burn out, but it should last a long time.