I just stuck an MTC single on and it only took about 10/15 minutes to strip the rear down enough to remove the exhaust.

remove grey lip with yam badge
remove handles and rack thing
remove light and plate assembly
remove exhaust

thanks was it, about 12 fixings max.

the MTC was LOUD even with the DB killer in so I made another one that was the full length of the inside of the can.

Worked a treat, it kept that nice deep throb but is now nowhere near as anti social as before...unless you give it a big blip of course. Makes my sons jump everytime hahahahahahaha.