S & S Grand National Exhaust

ferraiolo1

2021-2024 IMR Ambassador
Staff member
They made two versions. One for race bikes and one with cats. I don’t believe you can remove the cats from them.

you wouldn’t gain anything but weight savings anyway
 

Greg

Member
I removed the cats on my exhaust mate, just take off the end caps, remove the baffles (which unfortunately removes all the exhaust packing) then I just used a bi-metal hole saw to drill them out. Needed an extension bar for the drill as their both quite far down but not a massive job at all. Helps a lot with the heat, that’s the main reason I did it for.
 
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