What do I need to remove to get the silencer off my 2013 660z

You'll first need to remove the tail section in order to then get the plastic heat shield affair off the silencer (after removing the seat, grab rails and gray plastics). You can then loosen the clamp on the pipe and undo the bolts under the seat to remove the silencer itself.

Most of the silencer removal procedure is described pictorially in this thread (just ignore the bits about the shock absorber!)

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Cheers mate that's awesome, looks like a nice 5 min job....

Bit longer than 5 mins, but not beyond the realms of even a n00b like me

The tail is a bit of a pain in the arse to dismantle, and the exhaust weighs a good few kilos

but as long as i have pretty pictures to follow, i can do anything!

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Bike: 2013 XT660Z, TKC70 tyres

Mods:
Barkbusters, Scottoiler, DIY Tail Mod, DNA Stage 3, Power Commander V & O2 Eliminator, Exan X-Black Stainless exhaust, Tool tube, Ohlins linear front fork springs, Nitron rear shock, JT front and Supersprox rear sprockets, D.I.D. VX 520 chain, Adventure Spec bashplate, DIY USB Outlet, DIY chain guide, Kev's Throttle mod

http://www.facebook.com/onemooseonemotorbike

I got pissed off with having to take so much off so I cut the heat shield a bit so now I can slip it off without taking anything else off. You can't see it from the outside.

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check out www.redbikejohn.com for all the latest race reports from the CHEC and enduroland.

I then use watrrpump pliers (good ones like the knippex ones shown) to undo the bolts sitting in this right spot. Not good practice but I like shortcuts.

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check out www.redbikejohn.com for all the latest race reports from the CHEC and enduroland.

You have to take out the bolts that are already removed in the pic above so you can jiggle it side to side so you can get a grip.
Of course if you could just slide the exhaust back enough and drop it down it would be great but its one more thing the designer forgot!
Love the bike but every time you want to do something half of it needs taking apart!

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check out www.redbikejohn.com for all the latest race reports from the CHEC and enduroland.