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2005 chevy trailblazer_ls
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331 Posts
probably not

You have to be real careful around things that say add horsepower and increase fuel economy. Because the bottom line is more horsepower equals more fuel. Especially when you get up in the horsepower range. I wouldnt waste my money on it.
 

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International Chapter
2004 chevy trailblazer_ls
Joined
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3,900 Posts
from what i read over the years here, forget about it! and get a tune from PCMFORLESS instead, its just amazing and will give ya the best out of your engine and a K&N CAI system and your all set ;) :yes:
 

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Registered
2005 chevy trailblazer_ls_ext
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155 Posts
Discussion Starter #4
ok thanks and it wasnt a real concern bout the mpg raise but more so the hp. but i think that the pcm tune will be better.
 
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