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2005 chevy trailblazer_lt
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2 Posts
Discussion Starter #1
K&N offers two different cold air intakes for my 2005 LT with a Vortec 4.2L I6. One option is polished aluminum (77-3036) and the other is a black plastic material (55-3036). Which one is the best for my Trailblazer to reach better horsepower and sound? (with a later resonator delete and Y-Piped exhaust. Thanks!
 

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2007 chevy
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69 Posts
I think the plastic would stay cooler so the air is not too hot as it goes in. I had K&N plastic cai on my previous truck and had no problems. Love the sound of it.
 

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2005 chevy trailblazer_ls
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31 Posts
i have the 77 series i love it. its loud when you start the truck up. once you open her up around 3,000 rpms you can really hear it. acceleration is spot on. there is no lag once you mash on the gas:m2:
 
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