my cars blowing air out from the exhaust downpipe were its mated to the turbo,think the downpipes a bit bent,can i get a downpipe off any sapphire cossie?(do i need to know what sort of exhaust system it is or are they all the same?should i buy new or 2nd hand?think its a scorpion exhaust,not sure though nothing on it

ta

 

is this a common problem?just spoke to a mate of a mate who's cossie's doing the same thing!