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2007 Mustang GT: Anyone running Dynomax Ultra Flo Welded Mufflers or Flo-Pro Twister

3791 Views 6 Replies 3 Participants Last post by  jonballi
I have an 07 Mustang GT where I originally put a set of Flowmaster original 40 series on it. I thought it was too quiet so I had the exhaust shop remove the mufflers and put a straight pipe with tips on. Originally I was happy with the muffler delete, but after a couple months I don't like the raw sound and popping. I have heard some sound clips on the MAC Boom tubes which have some baffling that seems to give the exhaust a better tone, but don't want to drop another $300 on an exhaust. I am now looking at putting a welded straight race muffler on: Dynomax Performance "Ultra Flo Welded Mufflers" part # 24215 or Flo-Pro Twister Race Muffler part # F4 Series 4" round 12" long case.

Is anyone running these. The only other mods I have done:
C&L racer intake, Diablo Predator tune, JBA shorty headers, Hurst competition shifter.
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Did you like this setup? I am trying to figure a way to quiet my exhaust. The blower made my car loud!

Keep-in-mind that I run these in series with a set of FRPP Stingers. But when I ran them with straight pipes it was a very deep sound.
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