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Old 12-07-2005, 09:04 PM
LivenInTheFastLane's Avatar
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MPG Questions

If I go with a smaller size chamber muffler should/will I get better performance and mpg? And my cat. converter stuffing is puffing out the tail pipe and smells?
1/2 ton chevy, 4x4, 350/700r, tbi, 3.55:1
what is some of the aftermarket things I could get to increase mpg?
Do you get better MPG in the Winter or Summer?


Last edited by LivenInTheFastLane; 12-07-2005 at 09:31 PM.
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Old 12-07-2005, 10:38 PM
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First off I'd get a new cat. That is bound to be hurting your MPG. Id guess that you get better MPG in the summer as the air is less dense due to higher temperatures, thus you are needing less gas to create a 14.7 AFR (or whatever its set at) mix.
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