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I thought the only reason for getting the ECU upgrade was so that the boost could be upped. I don't understand how the ECU maximizes fuel/timing over the stock ECU to gain 53hp without upping boost when the only "flow" related upgrades that I saw were exhaust and airbox modification with K&N. Are the stock exhaust and intake that restrictive?
Richard P. '99 9-3SE HOT
posted by 168.215.135...
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