When I bought my car just this September the guy was like, I have flowmasters installed. So up till today, I have always thought I had flowmasters. Well just now I took a look under my car too see how it looked, and the mufflers had a MAC logo on it. Should I be dissapointed? I mean my car has a nice sound to it. So will going with an o/r H be a good idea with MACs?