Stock Intake Muffler
#2
are you talking about the stupid looking extention off of the air intake tube ??...if so, Yes...I have removed it and I really haven't seen much of a performance gain (but 1-2 HP is kinda hard to feel)
#4
Adkoonerstrator
iTrader: (4)
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From: Deep in the seedy underworld of Koonerville
Here is one way. That website has some neat stuff on it. 
<a href="http://www.sshotrods.com/performance/gmtruck/fullsize/99up/airtube/" target="_blank"><font color="red">Intake tube mod<!--color--></font></a>
John

<a href="http://www.sshotrods.com/performance/gmtruck/fullsize/99up/airtube/" target="_blank"><font color="red">Intake tube mod<!--color--></font></a>
John
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