I need a muffler and have done some searching, but every thread I have found (maybe there are some I did not find) seems to be very old, like 15 years or more. What is everyone using for a replacement muffler these days? Maybe the standard muffler shop one is fine, IDK. I'm not looking for a cat back- don't want to spend that much and I feel like there is not much performance to gain so why bother? BUT on the other hand, if I have to replace my current muffler (it rattles), I may as well get a decent one that sounds good and possibly is slightly high flow too so looking for suggestions. What's every one using these days?