seems the garrett turbos come with a 3in downpipe for a straight swap in, but the 3in is a major restriction and causes very high drive pressures. #@$%! is there a company out there that makes a custom 4in downpipe for the garrett gt37r stage 3 turbo. i heard about source automotive having a part like that, but was unable to locate it.
if not and you have a 4in downpipe on your garrett, which shop did the work for you and how much was it just so i have a general idea if i need to have one built by a local shop.
thanks
if not and you have a 4in downpipe on your garrett, which shop did the work for you and how much was it just so i have a general idea if i need to have one built by a local shop.
thanks