Arrow titanium headers question

I'm considering replacing the stock headers & T-piece with the arrow titanium ones. But I was wondering about a couple of things, first do the headers by themselves (with the stock muffler) in any way improve the sound? Secondly can you still mount the heat shield on the T-piece? And thirdly are the 850/1100/1200 headers/T-piece interchangeable?

Thanks in advance!

1. No
2. No
3. No

Are you certain about #3 Beetle?

I do know that the Arrow system is completely interchangeable with any/all of the stock components. Maybe I need clarification on the original question.

I meant whether Arrow headers / T-piece for the 800 or 1100 would also fit the 1200

beetle wrote:

1. No
2. No
3. No

Thanks Beetle. Really split in two about it haha

OK, yeah, then no.