1.) Use whatever oil you want. In the USA, the warranty cannot be voided over oil used UNLESS the dealer and/or manufacturer supplies it to you. (search the forums for more info on oil, and the internet for The Moss-Magnuson Act).
2.) TORS = Triumph Off-Road Silencers and tune. These are slip-on silencers that look like stock, but flow better and are slightly louder. They add about 5 rwhp on the dyno. (do a search for more info)
3.) For an simple oil change (semi-synthetic to synthetic), the first service is expensive. But it does let you have the dealer correct all the things they missed when they set up the bike - and charged you the set up fee. (do a search for more break in info)
4.) Whatever mirrors you like, and allow you to see behind you. (do a search for more info on mirrors)
2.) TORS = Triumph Off-Road Silencers and tune. These are slip-on silencers that look like stock, but flow better and are slightly louder. They add about 5 rwhp on the dyno. (do a search for more info)
3.) For an simple oil change (semi-synthetic to synthetic), the first service is expensive. But it does let you have the dealer correct all the things they missed when they set up the bike - and charged you the set up fee. (do a search for more break in info)
4.) Whatever mirrors you like, and allow you to see behind you. (do a search for more info on mirrors)