I just got a 3 inch magaflow cat back exhaust has anyone installed one on their 2011 wrx . I think that it should go on easy but you never know unless ya ask what I need to know do you need new hangers or anything that needs to be done or gotten when you go to put it on , so I have everything there when I put it on I did the same on my last car and it became a nightmare they said it was all there but I had the car on blocks for 2 days till I got everything , I hope that you all can answer or help me . Thank you.