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Super Moderator
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15,103 Posts
Snake oil. Save your money. If these things did what they say they do then the manufacturers would put them in the vehicles at the factory.
 

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Premium Member
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6,309 Posts
DO NOT WASTE YOUR MONEY ON THAT!!! They are garbage and definately do not work. In my younger days i bought something similar called a tornado for my 2000 pontiac grand prix which had stage 3 heads /cam and i got worse gas mileage and it made my 1/4 time worse.
 
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