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Old 05-18-2013, 10:09 PM   #20
Formula 3000 Champion
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Drives: 14 Z51, 15 GT PP, 15 JKU Hard Rock
Join Date: Aug 2011
Location: Deep East SF Bay Area
Posts: 4,012
Originally Posted by lamb110 View Post
Did the valve in the catback break? That's why it gets loud at 4k.
You know, until I saw this post I had no idea that the R had a bi-mode exhaust so I had to actually go under it and look. Stock it's so damned quiet you would never know.

When it is open on my Corvette (either by RPM or by remote control) you, and everyone around you knows it's running open.
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