[Bmwdrocher]

Previously I had E60 528i where was muffler and resonator deleted.,and it sounded great.And smeone advised me to make a straight pipe in my X5,I did and now I really regret it.The muffler shop cutter my muffler and welded straight pipe inside.Really don't know what I have to do at this point.They said they can add to my exhaust the Flow master muffler and it will be quieter.But I think it's a bull shit,isn'it? I did order the Super Sprint exhaust,was waiting 2 weeks,and It did not come in and I cancelled.I have a M-sport F15 35i with downpipe.What is the best I can do now for the exhaust fix?Thanks