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2008 trailblazer lt
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  1. General
    I have a 2008 Trailblazer that needs a catalytic converter. I have read several posts on here about people having success with some after market converters like Mangaflow and Walker as far as not throwing the code again after being replaced. I also read others still had problems. These posts...
  2. Engine Tunes/Mods
    Hey folks! Thanks in advance for your input. I've poured through just about every thread I can find on this subject but I had some specific questions I wanted to see if anyone could help out with. I just was given a 2008 Trailblazer with 91K miles with a dreaded knock that just started on the...
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