Ford Focus Forum, Ford Focus ST Forum - View Single Post - Borla or Magnaflow?
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Old 04-22-2012, 08:26 PM   #7
ProSilverVT02
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Magnaflow is 2.25" piping.
Borla is 2.5" piping.

Magnaflow is quiet at cruising speed and wakes up at WOT.
Borla tends to drone at cruising speed and screams at WOT.

I have had both and currently have a custom 2.5" piping with a 14" Magnaflow resonator and Magnaflow Muffler paired up with a HFC and it sounds great. Zero drone, and screams at WOT.

It all depends on what you are looking for.
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