I just got my car back last week after having all the panel and suspension damage fixed from when that tool hit me and something hasn't seemed right while driving. I had a look today and noticed one of my extractor pipes is dented. I've gotta go back and work out who actually damaged it while it's been at a few places but i was mainly wondering if anyone thinks the damage would restrict flow too much at all? I checked for leaks and couldnt find any luckily.

Here's some pics.



Also would it be difficult to get fixed?