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      05-30-2012, 11:05 PM   #3
FrankThomas
Formerly Known As ftconstruct
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Drives: 14 RS5
Join Date: Dec 2007
Location: New York

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The primary cats remain and the secondaries are deleted. The change in pitch is exactly why I did it. It doesn't increase the volume much but it adds a higher pitch that it didn't have when the ES was installed by itself.
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Current: B8 RS5 Sold: F80 M3 - 6MT / 981 Cayman S - 6MT