Exhaust Question, Opinions needed

kbc749

Alright boys and girls,

I need your opinions. I am currently running stock catback exhaust with Berk HFC's. A local person just put up for sale his Nismo exhaust (no headers) as he has upgraded, the listed price is $500.

My question has a few parts
1) price seems fair to me, given that I don't have to go pick it up, thoughts?
2) how different is the nismo exhaust from normal, is it significant enough to warrant the swap?
3) is anyone running the nismo exhaust plus Berk HFC's setup currently, it's hard to tell from the videos I've found what changes? I know that after my Berk hfc's I can make her pop if I rev up to like 3.5k-4K and let off. Also does it when I downshift, this sound just generally makes me happy, will I lose this sound?
4) if this was in your area and you had my setup would you pull the trigger with your tax refund or would you keep it and wait for some Fast Intentions or HKS or other catback to come along? (I'm aware the nismo exhaust is made by HKS, how similar are those two?)

Thanks for any input you can provide

KBC