Changing Out Stock Muffler

By Tight Lines
August 7, 2009 in Gen III & Gen IV V8 Engines (LS-Based)

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Tight Lines

Posted August 7, 2009

I have searched and found limited info. Anybody else running this muffler, Dynomax Ultraflow 17296 or other Ultraflow?

I have ordered one based on someones suggestion. Looking for some performance with a slight rumble and little drone. Any info would be greatly appreciated.

Putting on a 2006 Silverado 1500 5.3.

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