Outer Limits 4x4 Board

hi im just wondering when i fit a GTI twin cam engine in my sierra if the exhaust manifold is the same or if i have to change it? or can i use the carby engine aftermarket extacters?

no they are different, never done it but aparrently if you cut the exhaust flange of he gi you can weld it to the stock one and it fits, personally i would probably just get 16v extractors or fab a new down ipe for the gti exhaust manifold

if that doesnt make snse well its late

I just did my exaust on my conversion by swapping over the header plates on some Sierra extractors to GTI header plates

Its straightforward but does take a few hours to do.

Never heard or seen the 16v ones used? Any one got pics? How does it line up with the ports?