To those that have performed an instalation of a catback system, I need your help. The 3 inch intermediate pipe which connects to the factory Y pipe - what clamp will I need. (Ls1)

 

buy an exhaust band clamp, there at summit for like 13.68 part # WLK-33222, they work great

edit,

does the factory y pipe have a 3 inch opening? I think it is, 99% sure, but i forget, if not then you will need to get a reducer for the catback pipe


2nd edit,,,,

your sig says you have a fipk and an ssra... not sure if the ssra does much for it, might wanna sell the fipk and get a lid setup to take full advantage of the ssra, just a thought.