Originally Posted by johnrando Seth said Eurocharged works with AA, and my AA tune upped my MPG by 2-3, so maybe that's an indication. Then I added pulleys and it went down 2. You have to retune after you make a mod like pullies. Sometimes a mod makes mpg go down, regardless of a retune.
BP 2005 330i ZHP / 6MT Imolarot / Naturbraun 2003 330iT / 6MT Orientblau / Naturbraun It's not the car you drive, it's how you drive it.
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