Once installed....there is little advantage to either the Roadmaster or Demco. If I were buying again, I would buy the Demco due to more simple installation. However, the Roadmaster is very heavy duty and after having a BLUE OX BASEPLATE FAIL on my Maverick I am very happy with the strength of the Roadmaster.
Yes, the Roadmaster installation involves butchering the front air dam and removing all of the lower louver sections and parts. BUT...while that is certainly invasive...it will not cause overheating. The only thing those louvers do is close when the engine computer thinks that air flow is not needed and that ever so slightly lowers drag and allows engine to heat up quicker. Your engine may not come up to temperature as quick ( hybrids don't warm up well to start with) and that is about all I can think of that is a negative about removing the louvers. Since there are at least three louvers missing with the Demco installation ( one is removed at the factory now and two come out for the demco installation) I don't know that there is really any difference between the two in warmup. I can see NO difference in fuel economy at least for my mostly local lower speed driving.
Yes, the Roadmaster installation involves butchering the front air dam and removing all of the lower louver sections and parts. BUT...while that is certainly invasive...it will not cause overheating. The only thing those louvers do is close when the engine computer thinks that air flow is not needed and that ever so slightly lowers drag and allows engine to heat up quicker. Your engine may not come up to temperature as quick ( hybrids don't warm up well to start with) and that is about all I can think of that is a negative about removing the louvers. Since there are at least three louvers missing with the Demco installation ( one is removed at the factory now and two come out for the demco installation) I don't know that there is really any difference between the two in warmup. I can see NO difference in fuel economy at least for my mostly local lower speed driving.
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