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      03-06-2024, 09:02 AM   #18
M2siast
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2023 BMW M2  [9.67]
Quote:
Originally Posted by TrentMeister View Post
It’s all bullshit to be honest.

My interpretation is

Stage 1: tune down pipes 91-93

Stage 2: hot tune* dp and fueling upgrades

Stage 3: all of the above + turbos
I agree, “stages” are by definition vague.

But to my knowledge a stage 1 car only had a tune and perhaps some bolt ons to support the increased heat (like larger intercoolers).

Stage 2 is all bolt ons including down pipe (by definition, the car in the OP)

Above that I don’t even know, but if you swap turbos and swap internals, is it even stage 2 anymore.

And if stage 1 requires all of those in the OP, what do we call a tune with air intake and exhaust now? Stage 0?
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