don't make alot of difference on a Mini though, but it does look good.Make a cold feed pipe too...
Fit a K&N
You will get slightly more pwer due to the mass of COLD air
I read a report somewhere. Some guy did a study by using a thermometer next to his carb and one at the front of the grill. It was exactly the same temperature during nearly all driving conditions apart from when static. So a cold air feed would do bugger all really.