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      12-24-2011, 05:10 PM   #47
UdubBadger
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Drives: '04 330i ZHP
Join Date: Dec 2007
Location: Chicago Burbs

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2004 BMW 330i ZHP  [4.75]
2011 135i  [3.73]
2008 328xi  [4.38]
Guys my 328 made NO power from intake and muff delete... it just helps the throttle response, doesn't add any actual power until you retune the ECU to work more efficiently. HP = engine efficiency