awesome stuff mate, wish i had the cash to give something like this a go...
whats with the speed holes but, its called a angle grinder!!! cut the whole lot away and save even more weight
even better, just remove the whole bumper support like i did, bumper still sits fine and you save around 7kgs
ps. that exaust is a whole lot of porn, i would be putting lock nuts on the cat so i cant come around and steal it