I have a 2004 +4, when I tighten up the coupling between the cat and the manifold, I get a vibration through the steering at 70 mph. The same reverberation occurs when the clutch is full depressed.
If I slack off the coupling - no problem.
I notice that one of the Sports exhaust suppliers to Morgan aftermarket has developed a flexible coupling to eliminate the vibe - does anyone have experience of it?
All the best
Tony