GT Performance Mods 2005+ Mustang GT Performance and Technical Information

NVH w/4.10's/4.30's

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Old 7/18/05, 06:43 PM
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I plan on installing a set of 4.30 gears in my Mustang when I get it.

During the test drive I found there was a sweet spot for cruising, around 75 mph, where cabin noise from the exhaust was pretty much nonexistent. I figured the engineers had done this intentionally...

Is this effect lost when cruising at these speeds when you swap gears?
Old 7/18/05, 06:47 PM
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Well, I have SLP PowerFlos, plus 4.10 gears, and its not bad at 75mph. In fact, with the CD playing, I just hear music.
Old 7/18/05, 07:01 PM
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Originally posted by don_w@July 18, 2005, 6:50 PM
Well, I have SLP PowerFlos, plus 4.10 gears, and its not bad at 75mph. In fact, with the CD playing, I just hear music.
Cool. I'll be leaving the exhaust stock. I mean I'll be installing an X pipe. I mean an X pipe and longtube headers. I mean everything. I dunno....
Old 7/18/05, 09:22 PM
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Originally posted by eighty6gt@July 18, 2005, 6:04 PM


Cool. I'll be leaving the exhaust stock. I mean I'll be installing an X pipe. I mean an X pipe and longtube headers. I mean everything. I dunno....

Disconnect the stereo, you won't need it anymore!
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