After buying my Tuono (Italian for Thunder) a month or so ago, I finally got around to having the horrid OEM exhaust replaced with a carbon Akrapovic on Saturday. It now looks and sounds like it should and as an added bonus, shoots flames out the back end. For anybody buying one of these without a race exhaust. Aprilia are extremely protective of their products now and won't give a dealer a map for the bike without a VIN number and ECU code. They also want an invoice number for the exhaust to prove it's an Aprilia accessory (Akrapovic). Aparently owners were fitting Austin Racing and SC cans to the bikes and burning valves out, so now they will have nothing to do with them. My dealer was spot on and sorted the mapping and did the job as if you try and fit the axhaust (thereby removing the exhaust valve) the bike has a brain fart and won't even start with the exhaust valve cables removed. I hear it's possible to have an ECU remapped on the Aprilia forum, but to be honest, it sounds like a chew on and this way the dealer looks after me. The dash now has an Aprilia racing logo present to prove the race map is now loaded. Before. After. Oh, I rode it to the dealer in a rare dry spell the other day to have the job done. This one's a keeper.