This oem version of the M112 charger nose is too short. You will need to purchase a seperate nose and will cost at least $750. Stick with 2003 Cobra SVT. Its has the prefect nose length for the Richwood manifold.
A mate of mine here in NZ just purchased one of these blowers, It's going on a 1uz in a off road race truck. He will be making his own manifold for it incorporating an intercooler.