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  •  » Classic Mustang Muffler Survey, by MustangSteve

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    10/23/2020 9:10 PM  #26

    Ozblitz
    I FYI 24-7

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    From: Richmond, TX
    Registered: 4/14/2013
    Posts: 413

    Re: Classic Mustang Muffler Survey, by MustangSteve

    It really depends which Flows you have.  I have 50 series Flowmasters on my GTO and they are very deep and throaty at idle and I have no drone on highway.  When you get into 40 series, that’s when it gets a little confusing.  I have 40 Deltas on the 65, I drove to FL, and it was a little loud at 65mph, but I was also doing 3000 rpm.  (C4 Trans). The mufflers I got from John were intended for a louder application, which I still haven’t installed yet.

     

    10/24/2020 5:14 PM  #27

    MS
    Forum Originator

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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,265

    Re: Classic Mustang Muffler Survey, by MustangSteve

    I used to have 2-1/2” flowmaster 50’s on my 66.   They had a great sound just driving around, and were very quiet on the highway cruising at 2,000 to 2,200 rpm.  Zero drone.

    They are a great alternative.  I just did not like the look or the extra heavy weight.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
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  •  »  Classic Mustang Muffler Survey, by MustangSteve

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