Mufflers like Dynomax

33IMP said

I have fm 50 series (three chamber, no drone) on one of my cars, love the sound and the flow is good... but mine are huge, and ridiculously expensive now.
I would not consider a two chamber fm for any car you want to use for more than a half hour.
The nickname for a fm 40 is "dronemonster".

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Thank you for the advice, yeah these 40 series are seriosuly no good, seriously do not recomend them, I have been daily driving my rig for almost a month now and the headache is immeasurable. I want to swap over to something tame and flows well. The super turbo seems like an obvious choice but I havent really liked the way that they sound from all the examlples I have found on youtube from people who are running similar set ups to mine.