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      09-02-2013, 08:43 PM   #1590
justpete
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Drives: '11 328i '19 M6
Join Date: Jan 2012
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2019 BMW M6  [5.00]
2011 BMW 328i  [4.50]
2016 BMW 550i  [4.12]
Quote:
Originally Posted by smellthebeans View Post
What's the difference between stage 2 and the stage 3? Exhaust header cat delete?
As far as I know stage 2 is an on-road tune for an N52 engine with std non-3-stage manifold. Dunno what a stage 3 tune is, don't think there is one really. There are custom tunes with headers, etc. and off-road tunes, iIRC. Andrew's the guy with the right answers though.
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