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      04-16-2026, 04:18 PM   #64
BimmerRob08
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Drives: 2008 M3, Space Gray
Join Date: Mar 2008
Location: KIKR (ABQ), NM

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Quote:
Originally Posted by TboneS54 View Post
Not a lot, and if you're not doing headwork (port/polish), then it's really a waste of time/$.

Do we know the standard duty cyle of our injectors? Is there much ceiling? Maybe you'd have to upgrade if you did headwork and big bore TBs?

On the S54, we're finding that the stock injectors are pretty maxxed out after you do the standard bolt-ons (catless headers, cams, airbox, tune).
No, definitely not gonna do all that as this isn’t a track car. But good point.
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