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| Gryphon Programmer (Disabled) Edge Product has discontinued the Edge Evolution 2, but we still provide support and tuning for it. If you have a question or comment relating the Gryphon (or Evolution) programmer, post it here. |
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#1
Sat, August 11th, 2012, 09:52 AM
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Hopefully the OP will post up results. Unfortunately I'm going with a harmonic vibration theory and it just happens because of a variety of conditions lining up perfectly to cause standing waves.
Your exhaust modification doesn't need any kind of tuning because the "y" is still intact.
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#2
Wed, August 15th, 2012, 10:11 PM
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mine too
FWIW-I noticed exactly the same thing with my 2004 SCREW. It is not there on my 87 Custom Performance. I was just guessing it was something to do with modification of the timing for the tune.
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