Alex, on the can, just drill on the lowest part of the can. It varies from exhaust to exhaust. Just find the lowest part of it, either front or back, then drill there. Water will accumulate at the lowest point then drain.

 

Thanks dude, i will have to do that. If it ends up causing problems for me ill just have to get the corsa extremes.

 

Here's to hoping problems arise then!!! (just so you can get the Corsas, hehe)