too many variables, 2.5" downpipe is one, timing may be another, a/f ratio?
The GTIR manifold not mated properly to the head im sure is killing it too and just for the simple fact that the ve's do not like small turbos.
If your going to use the small turbo I suggest you do all you can to make it as efficient as possible. Meaning 3" downpipe, port matched to the head and so on.
The GTIR manifold not mated properly to the head im sure is killing it too and just for the simple fact that the ve's do not like small turbos.
If your going to use the small turbo I suggest you do all you can to make it as efficient as possible. Meaning 3" downpipe, port matched to the head and so on.