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gp -> RE: Hypertech E-Con Has Anyone Tried It? (4/6/2008 9:48:40 AM)
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If you had a larger tires instaled that would normaily increase gassconsumption, right? So maybe this gadget works but you didn't realized becouse it spended same gas as with smaller tires. I'm not expecting that will save more then 5% of gass consumption. Are there any other gadgets on a market, taht can increase gass efficiancy?
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