First off sorry if this is posted in the wrong place. I am wanting more noise out of my Fiesta but I cannot justify upwards of 400$ for a pipe just to have more sound, so I am leaning toward removing the muffler and replacing it with a straight pipe. So my question is what do I need to tell the shop? It needs to be replaced with a 2.5 inch pipe? Also if anyone has does this please let me know how you went about it and what you think of it. Thanks so much!