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TrailBlazer 2002-2009
2023- The TrailBlazer, originally introduced as an upscale Blazer, was produced from 2002 to 2008 with a powerful I6 engine and with a monster V8 offered in the Trailblazer SS
Platform: GMT 305, 360, & 370.

better gas mileage

   
Old Sep 20, 2018 | 10:57 PM
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Larry G.
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Default better gas mileage
2002 ext ltz available tuner or reprogram?
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Old Sep 21, 2018 | 2:38 AM
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Originally Posted by Larry G.
2002 ext ltz available tuner or reprogram?
Don't know if you'll get better MPG, but here is a link:

Sinister Performance, LLC. Custom ECM/PCM Tuning
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