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      02-09-2020, 09:51 PM   #22
JBA87
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Drives: 2019 BMW M5
Join Date: Jan 2020
Location: Palm beach gardens

iTrader: (0)

Shell, Chevron, Sometimes Sunoco

It varies

I definitely noticed an improvement

But it's just inconsistent

I mean the best time I could get stock was 3.2

The best time I got on map 2 was 2.94

I just fee that the times are weak in general

I figured on a stock comp I would consistently do 3.0 on the street with 93

And with jb4 I would be in high 2s (like a 2.7) consistently ...

But I struggle

I should test some 60-130s
And quarter mile times

There is a track event next weekend so we shall see


I know the 0-60 is not the best barometer for quickness due to different variables (either way the car is fast) but I still think those times should be much lower for a 2019 M5 comp w jb4

I have Michelin Pilot sports from factory

I don't have ceramic breaks (maybe that's adding weight) ...

I dunno

Car definitely getting more boost

I will say that jb4 doesn't feel as smooth as stock


I sent terry maps immediately after install because car had the old firmware and through a drivetrain malfunction error

I installed new firmware and he said they looked good and to continue running on map 2


But again 2.94 is meh
Appreciate 0