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Drive True
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6,833 Posts
Discussion Starter #1
What mods besides intake and exhaust improve fuel economy? Which ones hurt?
 

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Registered
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2,468 Posts
probably the best mod is to swap in an prius engine. :p okay, that's probably more fuel economy than you intended.
 

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retired mod
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4,012 Posts
i have seen results of a GOOD ecu programmed and it has improved performance aswell as economy... plus a fully programed ecu will make the improvements from the exhaust and intake more noticible
 
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