Not surprising..the M5 came out after I gave up the VP dealership and picked up Sunoco....I sold 5 gallon pails of MR-9 and MR-4 both were for bikes.one was for 2 stroke and the other 4 stroke...anyhow this stuff would pick up a stock street bike anywhere from 15 to 20 HP just by adding the fuel most ran it 50/50...
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Bjuice..
"I'M YOUR HUCKLEBERRY ! "