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JB4 bs ESS
So I am done with the JB4 piggyback on my e70 n63, its just nothing to write home about. My buddy has the ESS on his e70 n63 and that thing responds, shifts and moves must faster then mine ever did so I am considering going to the N63 E-Flash ECU Performance Software offered by esstuning. I have seen it first hand, but does anyone else have any experience or reviews on this product? thanks in advance!
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2011 e90 n55- fully upgraded fuel and air system. Hellcats dont like me
2012 e70 n63- m package, ESS flash tune, x5m bumper and megan racing quad exhaust
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