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      01-23-2013, 12:57 PM   #12
518N55
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Drives: 2011 335i coupe
Join Date: Mar 2012
Location: Upstate NY

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full bolt on and meth, JB4 ISO w/ flex fuel wires

Drivability seems more smooth and throttle is sharper...

But I also didn't have a choice, the car was misfiring on old plugs. I think every 20k is a must