Sasquatch
Full Access Member
Flowmaster is one of the worst flowing mufflers. I'd look into cbe, Slp, Dynomax, anything straight through
i`m surprised it took so long for someone to post this ********.
It`s true that other straight through mufflers flow better and you may gain one or two extra horsepower which you will never feel.
Flowmasters flow just fine, My catback was my first mod on my yukon and i could feel the difference it made over the stock muffler.
I`m not knocking other brands, just the myth that flowmasters don`t flow well.