RENNtech ECU Upgrade Z4 35i E89 (2008-2012 N54B30). Up to 420 HP + 435 TQ. Gains: +120 HP & +135 LB-FT
RENNtech ECU Upgrade Z4 35iS E89 (2008-2012 N54B30to). Up to 420 HP + 435 TQ. Gains: +100 HP & +103 LB-FT
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7825 SW Ellipse Way, Stuart, FL 34997
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(+1) 561 - 845 7888
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Mon - Fri 9am - 6pm
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