first of all let me say, Great Looking Bike, wise choice. now lets see about personalizing it for you.
Exhaust, i'm with you on the V&H big radius but have seen alot of them. V&H makes a cool 2-1 tappered that sounds outstanding, ez install.
Seat, yes, swap seats to some solo, let the fender show, add some color to it.
but what I see is maybe a handle bar change, little more high rise
lets get back to the service contract thing, sorry they talked you into it, but it is what it is. you need to talk to the manager/dealer/owner/HMFIC/ or whomever has the say so and ask specifically what can be done. these contracts have nothing to do with HD. they are an aftermarket add on. they are meant to capture future funds from new owners who don't the difference between a sprocket and a socket.
your A/C is a high flow and is already a stage 1 and mapped as such. by changing the pipes it should be fine, but keep and eye on temps and plugs.
and don't let dealers feed you a bunch of bullshiit.
was at one on Friday, friend of mine picked up his new 2010 UC lmtd 103, paperwork said ABS standard so he accepted as such. he called me to meet him there just to cover his six. many issues came up 1- bike was dripping wet, sent it back to dry (this is a trick a dealer will do if there is a blemish, once you ride it off the lot its a warrany thing), then, when he made the deal he asked for the Brakelight flashing thing installed, they put clear lenses all the way around with clear bulbs. sent it back again. looked the front axle, no speed sensor ring, I said this doesn't have ABS, salesman said yes it does they all do. my friend went to the back parking lot and ran it up a locked em up. NO ABS. he refused to accept the bike and is now waiting for another. his wife is pissed at me but he cannot thank me enough, she's not the one grabbing a handfull of brake.