porting o2 housing with t25

[my95tsi]

i'm going to be putting on my 2.5in downpipe in the next month or so. I was wondering if i should port the o2 sensor housing while i'm at it. I still have the t25 will this make a difference or kill the turbo?

 

[herostar]

It's a good idea to port the O2 housing while you're at it. It'll help you a little now, and lots down the road. It'll save you time later too. It won't hurt anything