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Throttle lag improvement with JB4?
Looking to get the JB4 since its an easy way to get a nice power boost on the 535i but does it also take care of the throttle lag that these cars have or do I also need to get the sprint booster? Also since it seems both plug in to the OBDII connector how would this work if I needed both?
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2012 535i Titanium Silver/Black
20" Gianelle Verdi Gloss Black
BMS Intake
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