i have just got a viper stainless steel race system for my nc29 i already have a scorpion endcan which isnt a slip on i havw found someone who can make me an link pipe with the 3 screw attachment my question is the system comes in 3 parts that join together 2 parts that make up the downpipes which join to the other section that has 4 seperate points for each one. do i need to seal these in anyway when attaching or can i merely just slot them together ? i have new gasket to fit ?

Don't they have springs to keep them together - if so you don't need a gasket