I am considering buying this exhaust for my streetfighter v2. The question regards the statement that spark says that you have to trim or remove the radiator fan shroud for this to fit. Can someone who has this exhaust installed confirm what exactly needs to be removed for this to fit. Looking at pictures it looks like the radiator fan assembly is made up of two pieces that - the fan shroud and the funnel part that feeds air to the fan. Thank you.