I would put it behind the bar aswell mate think it looks better, just my opinion though!!
 
in front mate for maxium air flow but its your choice and i done mine before the uni kit came out and if i was getting one now i would proberly put it behind .... but up to you ..:D
 
Behind me thinks.

I like the more oem look anyway with some subtle touches.

good to watch the penny drop when people notice them and there face goes :-o
 
well iv ordered the pipes to sit at the front which are 7.5-8 inchs a side. any1 no sizes for behind so i can amend ?