very difficult believe me it took me and a mate a good 3 hours to get them in there and 3 days ago my indicator went so it took me 45 min last night just to get the old indicator out i dont have any pics at the moment cos the job on it isnt finished yet and i havnt had a lot of time to complete it.
Basically i need to get a carbon fibre end made up with 2 3 inch holes in it rather than what i have at the moment a bmc cut in half with 2 3" pipes going into held in place with black tape, but once it is finished it will look really nice and it sounds good too