End can and tail tidy
#2
#4
#5
Full exhaust will net the most power gains. A slipon will only net a few more ponies if that. With slipons you just need to find ppl with em and listen to theirs or listen to sound clips online (doesnt do any of them justice tho). And find one you like the looks of.
#9
I'm not sure if we should be offended by that or not, but i'm pretty sure there are plenty of people from England on here and none of them ever used terms like that