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      10-27-2008, 05:11 AM   #13
raolc
Second Lieutenant
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Drives: z4m
Join Date: Oct 2008
Location: Los Angeles

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bump

guys im seriously amazed... i put the downpipes on rescently and I'm getting an average 25.4 mpg compared to my stock 21

from what I understand the better air flow just makes the turbos more efficient and have to work less harder... and its defintely been proven that the intake and the downpipes Riss Racing offers give a better air flow... now i just can't wait to see if the scoops have an effect too and im guessing the exhaust might slightly help

it defintely feels nice having a car thats probably running atleast 350 at the wheel getting 25.4 mpg!! thanks riss racing!!
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