Sts turbo kit LT1 questions
As far as the long tubes and muffler go. You won't need the muffler and I think long tubes actually hurt performance until you reach pretty big hp if i'm not mistaken. I have a friend getting an sts kit on his lt1 firehawk and he had to ditch his lt's and buy some stock manifolds and this is for a 383.
Good luck!
. Just wrap the exhaust as much as possible and you should be fine. As for reliability getting a professional tune is critical, and also you will have to up the fuel system. I highly recomend a wideband so you can moniter it as well. With all that said it can last a long time. 

