I just related what worked on our two bikes. Not mentioned but we also rerouted the radiator hot air discharge down to the street rather than on my right foot.
Did the various items in steps and cannot tell you what the results would have been for each if done in a different order. Perhaps the body panel insulation would have helped significantly alone. Donno. But I restate that wrapping the exhaust header and removing the cat made a big difference on our bikes, and I sit in traffic every day on the way home from work. It was a BIG difference. Cats are not required for emissions inspection on motorcycles. Officially its not a cat anyway. Its a secondary muffler, look at the parts diagrams. Also the emissions label makes no mention of a catalyst exhaust treatment. The HP increase was a very nice side benefit. Between the air filter and exhaust the vtwin pulls very nicely all the way to red line. It handily out runs a stock 1330 RT.
One man's loud is another's healthy exhaust note. My RT is VERY quiet compared to my GT. We like the sound, don't expect a bike to be silent and likely would have installed an aftermarket exhaust had these changes not made them sound so good.
As I said, we also insulated the body panels. But did not do them until they were off for the air filter replacement.
I get no heat up around the seat area any more, nor on the body panels. Very comfortable. Our only problem is still the fuel vapors.
I do hope BRP comes up with a reasonable fix for the boiling fuel tank issues. Its going to take a fully insulated tank to fix it in its current location.
bluestratos, I am sorry you gave up on your 13 and forked over more money for a 14 to get what you should have gotten already. Should not be this way. For us, a 10k loss times 2 bikes was simply not in the cards.