Your thread is ancient, but I sorted this job on my KLV today.
Both silencer to collector bands had corroded and split, plus the LH collector to front pipe clamp band.
You will have spotted that the OEM clamp bands are spot welded to the pipe, which is stupid.
When you break the clamp off, you are left with a stub of corroded steel on the pipe, which prevents the new clamp from sitting correctly on the joint.
The lower alloy trim finishers close to the joint are welded to the exhaust can, and cannot be removed.
I did find that an air grinder with a thin cutting disk has a small enough diameter to wangle inside the exhaust trim, and clean off the rusty stub of the old clamp.
A regular 4 1/2 cutting disk on electric grinder is too big, and a dremel would take forever.
The new 55mm Mikalor clamp then fits perfectly - you can buy these at WMD, or decent motor factor.
The left front joint leaves a stub on the lower inside of the collector, you need to get on your back and attack it from the RH side with the bike on sidestand.
Again, when done the 55mm clamp fits the front pipe to collector joint.