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envoy denali
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162 Posts
Discussion Starter · #21 ·
its HOB houseofboost.com
 

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envoy denali
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162 Posts
Discussion Starter · #22 ·

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TBSS/Grand National
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pm sent
 

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XPTBSS
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4,249 Posts
it says 510hp in your sig but you claim 570hp...whats the change or was the 570hp a typo?
 

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envoy denali
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162 Posts
Discussion Starter · #26 ·
i removed DOD and install Tbss cam and LS2 lifters and springs 570 whp on dyno jet STD
with cutout open

kit is sold tho , a guy installed it on sierra 2010 and it worked , he had to move coolant tank little bit and 3 extra pipes required i have pic if i cn post it here i will do it
 

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envoy denali
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Discussion Starter · #27 ·
here is it
 

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