This coupler is like a little miracle.  It allows the installation of  our mongloid 4" diameter FPAIP on any stock style turbocharger for the  DSM. 
Up to this point customers with 16g or FPBig28's or even old style small  inlet 20g turbos could not use the mongoloid 4" diameter FPAIP due to  water pipe interference.  This unique product solves the problem by  attacking it head on.  We make something from scratch if it doesnt  exist.
  
As you can see from the pictures, the 4" FPAIP now clears the radiator  hose, WG actuator and Jpipe.  This is due to the simple addition of an  offset alignment of the reducer ends.
  
	
   |