Finally after riding around for the last 2 years (almost), I have a NEW solenoid actuated exhaust cutout valve. I found this one from Summit Racing. I drove my Challenger from Virginia to Carlisle two summers ago. I made the trip with absolutely no problems. On my way home and literally about 5 miles from the house; I was traveling behind a tractor trailor in a tunnel when he had something come off the truck (or drove over something already in the road), I ran over it
(kinda hard to swerve in a tunnel) and the debris sheared off the solenoid valve on my driver's side exhaust cutout valve.
It scared the poop out of me! When I was able to pull over all that was left was two wires. The problem was finding just ONE new solenoid and not the whole kit as I already had the wiring and the passenger side solenoid. So I wired shut the valve until now. I think the car is getting LOUDER!!
Matt B.