I did this after MurphNH posted some pics of what he did a while back on a different thread. It was cheap and easy to clamp the flaps open. You can hear a difference, but it’s not a crazy difference. Mine seemed to rattle a bit and clamping them open got rid of that. To me it was worth the effort while I wait for an exhaust to come out with the tone I’m looking for.
.. they spin maybe 1/4 turn clock wise and that’s way I turned them counter clock wise..You should be able to see and feel the difference between winding and unwinding the spring, From memory I think they rotated down and towards the back of the truck or counterclockwise.So I just clamped my valves open… I assume and had this thought, there’s no way I clamped them shut right? Resting position is closed and I spun them both counter clock wise about half turn and clamped them in that position.. so that should be 100% open not 100% closed right
Wouldn’t wanna be driving around with them shut by accident because I’m guessing that would definitely cause issues
And before you ask, yes I was able to use one clamp per valve. Tightened it and it doesnt move at all no matter how hard I try to turn it.
