Gotta change the wet exhaust hose on my 500 efi. Could somebody tell me the size hose, I have CMI E top headers. Does it need the hose with the wire ? Anyone have a good source to buy it from? Lastly do I need to remove the header to change the hoses? Thanks in advance

4”. West Marine carries it (if you have one local) or CP Performance has it. Yes, it does need the wire in it. You don’t need to pull the headers but it does make it easier.

https://www.cpperformance.com/p-45-4...aust-hose.aspx