The Rosso twins are
AO Silver Member
Join Date: Oct 2011
Location: United Kingdom
County: Tyne and Wear
Iirc the lower pipe coming off the turbo is around 49mm dia, but it increases to around 55-57mm at the intercooler, the upper pipe is around 55-57 both ends, you could use a reducer to join the turbo, although there are pipes available to do the job and they look like one size so maybe they just clamp up tight on the turbo, though I personally would prefer a snug fit.
Edit-after looking at that pic again it appears one end of the lower pipe is actually a step up to join the IC, didnt notice that before.
Last edited by edraven71; 29-09-17 at 20:52.