Thread: Bmw F series N55 HPFP upgrades
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      03-08-2020, 07:02 PM   #159
ferocity02
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Drives: 2013 135is
Join Date: May 2014
Location: USA

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I installed a Fuel-It stage 2 LPFP today and the hammering sound went down significantly, by 70% if I were to put a number on it. Much more bearable now.
Appreciate 2
ZM22813.50
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