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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > B58 Turbo Engine / Drivetrain / Exhaust Modifications > Safe to flash Bootmod3 MPPSK Tune without the actual Exhaust?
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      02-01-2022, 07:20 PM   #1
toniree93
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Talking Safe to flash Bootmod3 MPPSK Tune without the actual Exhaust?

Im cheap so Im thinking of making a ghetto MPPSK exhaust for my 2019 440i where I delete the resonators, and install a Remus Axle-back exhaust. Voila, a ghetto MPPSK Exhaust system for only $1400.

With the above exhaust setup, Im curious if flashing my Tune with the Bootmod3 version of the B58 MPPSK tune will be safe for the car? As in not cause engine problems down the road? My logic is if all that the MPPSK exhaust is is two straight pipes with a performance muffler, my setup would scientifically be the same thing.
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      02-01-2022, 08:13 PM   #2
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Quote:
Originally Posted by toniree93 View Post
Im cheap so Im thinking of making a ghetto MPPSK exhaust for my 2019 440i where I delete the resonators, and install a Remus Axle-back exhaust. Voila, a ghetto MPPSK Exhaust system for only $1400.

With the above exhaust setup, Im curious if flashing my Tune with the Bootmod3 version of the B58 MPPSK tune will be safe for the car? As in not cause engine problems down the road? My logic is if all that the MPPSK exhaust is is two straight pipes with a performance muffler, my setup would scientifically be the same thing.
the MPPSK tune is definitely safe for your car as BM3 gives u the copy of what bmw would do if u had bought the MPPSK. anything beyond the catback will not give any noticeable horsepower gains so u have nothing to worry about
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      02-01-2022, 08:23 PM   #3
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just go stage 1
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      02-01-2022, 09:14 PM   #4
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just go stage 1
Nah I totalled my last 440i on stage 1 because I spun out and crashed into a tree. Floored it and started going sideways LOL
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      02-01-2022, 11:31 PM   #5
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Nah I totalled my last 440i on stage 1 because I spun out and crashed into a tree. Floored it and started going sideways LOL
A civic or camry might be a little more up your alley my friend
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      02-02-2022, 02:44 AM   #6
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Quote:
Originally Posted by toniree93 View Post
Im cheap so Im thinking of making a ghetto MPPSK exhaust for my 2019 440i where I delete the resonators, and install a Remus Axle-back exhaust. Voila, a ghetto MPPSK Exhaust system for only $1400.
No you don't. Still smaller diameter pipes

Quote:
With the above exhaust setup, Im curious if flashing my Tune with the Bootmod3 version of the B58 MPPSK tune will be safe for the car? As in not cause engine problems down the road? My logic is if all that the MPPSK exhaust is is two straight pipes with a performance muffler, my setup would scientifically be the same thing.
Yes, it's safe. You will have a similar, just inferior, setup
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      02-02-2022, 08:59 AM   #7
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Quote:
Originally Posted by dmanb2b View Post
just go stage 1
Quote:
Originally Posted by toniree93 View Post
Nah I totalled my last 440i on stage 1 because I spun out and crashed into a tree. Floored it and started going sideways LOL
Just go stage 1, and keep traction control on
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