When I got my 650 new I had a LONG chat with the dealer about mods.
He said any warranty claim they make (Suzuki pays the claim ,not the dealer, and has to be OKd by them ) will be followed up by pictures....so?....
I left it till 10,000 miles to put Nitron suspension on it (just in case I had a lemon) and was told thaŧ would be looked at "favourably" it the event of a claim?
Not sure what that means?
Engine mods not on the accesory list ,not so much. Hmmmm.
A non approved can is going to need a reflash /power commander ........and then the warranty is definitely out the window IF there is engine trouble (unlikely but.....)
I would leave it for a bit ,get the second service done to keep the warranty uncontestable , then change it, always assuming you are thinking of keeping the warranty up.
Then IF it goes bang you can always sneak the original back on before you take it in
