Charger R/T exhaust on Chrysler 300 2.7? Things needed?

I have heard of people putting Charger R/T exhausts on their 2.7's but I never heard of anyone doing this with a 300 2.7 other than someone I've read that has done it with a Challenger R/T in which case I don't like the squared tips as much as the round ones
I have a 2006 300 2.7
Does it matter what year Charger R/T exhaust I get? (2005-2010)?
Do I need 2 hear shields or just 1?
Is there any welding needed?
I've heard you have to get sleeves as well. What size? Because the
R/T exhausts I think are 2.50" before cats and then turn to 2.25" after cats
So how many and what size sleeves do I need to run an R/T exhaust successfully?
Sorry I'm rambling a bit but any input would be great thanks
P.S. I understand the back pressure of the exhaust will be a performance downgrade.

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