have an intercooler with 3 inch inlet and outlets
fitting 3 inch piping will be very tight if i was to use a reducer from the intercooler inlet ie 3"to 2" would this cause loss in performance or is the loss negligiable
2d option is reducer from turbo ie 2"to 3"all the way to intercooler and then 3"from outlet to a 2"pipe in engine bay to top hat, my pipe in the engine bay is the origional diameter of 2" and is chromed so didnt really want to get rid of