Hello Alan, yes you will need to do the Fuel Pressure Reg mod and you will need a supressor. The supressor that is fitted on your altenator is integral to the black plastic cover that you need to modify. If you can get it out in one piece then you can use it again. Message Daz to see where he got his supressor from.
To do the FPR mod you will need some Y pipe connections and another valve. Daz or Vocky can help you with part numbers.
;-)