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04.5-05 LLY Performance Discussion of Chevy and GMC Trucks with LLY Duramax Turbo Diesel Engines Related To Performance And Longevity

?????exhaust?????

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  #1  
Old 01-09-2009, 02:21 PM
GTRW3T's Avatar
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Default ?????exhaust?????
ok im getting ready to install stacks on my truck next week. i just got them the other day 5in aussie cut grand rock stacks. what i was wondering is should i gut the cat out or leave it because i dont have a muffler on the truck.. any ideas or suggestions??
 
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  #2  
Old 01-09-2009, 03:33 PM
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Id go no cat, no muffler.. Duramax's sound sweet with straight pipes
 
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Old 01-09-2009, 09:49 PM
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kill the kitty
 
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Old 01-09-2009, 10:37 PM
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I wouldn't gut it that way you can put it back on if its to loud. straight pipes
 
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  #5  
Old 01-09-2009, 11:11 PM
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straight pipe it, cats are for pussies
 
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Old 01-12-2009, 10:37 AM
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well yawl thanks for the help.... i guess that my thought was right.. KILL THE KITTY
 
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