You can get a new bike for £500 less https://www.ebay.co.uk/itm/ROYAL-EN...160218?hash=item23c877f59a:g:Dv0AAOSwqtRdp3A8
Fitted a race Acropovic to my Tuono when it came new from the shop, cost me £500. Not sure what you would get for the extra money power wise.
This came free with my Tuono Factory earlier in the year, Retails at over £2k and £1k of rrp of bike, Ducati are pulling the piss, Glad I never waited
Doubt the free exhaust is going to be the decision maker on whether to go to Ape or not, Its a hell of a good bike tbh, For sure the streetfighter v4 is going to be some bike but as a road bike doubt it will be any better than the Tuono? Think im going to be happier with my Ape and an old 996 to play with