Question on exhaust

joeyo67

Looking for serious advice from the DIYers out here, so I hope you can help me out! I have a '10 Z vert and I'm going to take the leap on changing out the stock exhaust. When I read the other posts, I see people mainly doing CAT back.
1.) Does it make sense to do the headers as well?
2.) I don't want this to rust out. Which has best QC & reliability?
3.) lots of DIY's doing this upgrade, on a scale of 1 to 5 where does this one land (5 being most difficult)?
4.) If I DIY, am I on my own for support or do these Mfr's have a support number to trouble shoot issues?
5.) Budget is good, not looking to pay for the name unless it's that reliable.

And lastly, if I'm doing this, should I consider other upgrades that make sense while I have it all jacked up?

I do not track, it's not a daily driver and it has about 8k miles in these 2.5 years that I owned it. Its a little baby to me, so looking to do simple but worthy upgrades without going to crazy if that makes any sense....

Thanks, joe

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2010 370Z Convertible - Summer Runner Only
2003 Maxima 2011 Expedition 4x4 Limited
Semper Fi