M550 downpipe no tune?

Kriz2fer · 01-03-2022, 12:05 AM

Is it dangerous to run a cat less downpipe with no tune? Cars a 2022 so no times available.

Boosted_8 · 01-03-2022, 08:23 AM

Just remove the secondary cats for no ill effects. Removing the primary cats causes CEL and cannot be tuned yet anyway as you stated.

mike@x-ph.com · 01-03-2022, 10:05 AM

Quote:

Originally Posted by Kriz2fer

Is it dangerous to run a cat less downpipe with no tune? Cars a 2022 so no times available.

Not dangerous. Car runs the same; you will get a check engine light as a warning which you can ignore.

G30 B58 · 01-07-2022, 10:41 AM

Quote:

Originally Posted by mike@x-ph.com

Not dangerous. Car runs the same; you will get a check engine light as a warning which you can ignore.

Sorry, I wouldn't say ignore. What if the initial CEL masks a second CEL that is more serious?

I'd say monitor.... but, not my car.

mike@x-ph.com · 01-07-2022, 10:43 AM

Quote:

Originally Posted by F32 N55

Sorry, I wouldn't say ignore. What if the initial CEL masks a second CEL that is more serious?

I'd say monitor.... but, not my car.

It wouldn't hurt to check the car code every now and then

Kriz2fer · 01-21-2022, 04:48 PM

Ordered the vsr down pipes. We’ll see how well they fit.

Enjoiii · 01-21-2022, 04:53 PM

Quote:

Originally Posted by Kriz2fer

Ordered the vsr down pipes. We’ll see how well they fit.

Fit nicely. Good choice

zinner · 01-21-2022, 06:15 PM

Remember when the JB4 would auto-clear the cat codes ? Might still do that if you make it think it's outside the continental united states

Been a few years, not sure that is still an option.

Boosted_8 · 01-22-2022, 12:33 PM

No that feature is dead in new BMWs, only works when the car is in diagnostic mode.

TacticalGunnarM550 · 01-22-2022, 12:35 PM

Quote:

Originally Posted by Boosted_8

No that feature is dead in new BMWs, only works when the car is in diagnostic mode.

i wish someone would just come out with a CEL delete for it without a tune

Boosted_8 · 01-22-2022, 12:37 PM

Leib automotive in Germany have a solution but it uses up the OBD port permanently

Kriz2fer · 02-02-2022, 02:24 AM

Wow just finished installing those Down pipes. What a pain in the! I did it with 2 jack stands in my garage. Took about 2 days working here and there. The car sounds good though, pops like crazy even in comfort mode.

mike@x-ph.com · 02-02-2022, 09:10 AM

Quote:

Originally Posted by Kriz2fer

Wow just finished installing those Down pipes. What a pain in the! I did it with 2 jack stands in my garage. Took about 2 days working here and there. The car sounds good though, pops like crazy even in comfort mode.

editdata · 02-02-2022, 10:57 PM

I thought you could run with the o2 extensions and have no problems

Ron1n · 02-05-2022, 11:11 PM

Quote:

Originally Posted by editdata

I thought you could run with the o2 extensions and have no problems

This should work, but some people have still reported CELs after.

TacticalGunnarM550 · 02-06-2022, 06:42 AM

Quote:

Originally Posted by editdata

I thought you could run with the o2 extensions and have no problems

i haven't seen anyone on here claiming this works

Kriz2fer · 02-06-2022, 04:39 PM

I ordered 4 I’ll let you know if it works. They have the mini cats.

TacticalGunnarM550 · 02-06-2022, 05:24 PM

Quote:

Originally Posted by Kriz2fer

I ordered 4 I’ll let you know if it works. They have the mini cats.

awesome, thanks!

Kriz2fer · 02-08-2022, 10:24 PM

Quote:

Originally Posted by TacticalGunnarM550

i haven't seen anyone on here claiming this works

Installed the mini cats and they caused the car to idle weird. Took them off

TacticalGunnarM550 · 02-09-2022, 11:12 AM

Quote:

Originally Posted by Kriz2fer

Quote:

Originally Posted by TacticalGunnarM550

i haven't seen anyone on here claiming this works

Installed the mini cats and they caused the car to idle weird. Took them off

what about the o2 extensions?

Kriz2fer · 02-09-2022, 11:44 AM

Quote:

Originally Posted by TacticalGunnarM550

what about the o2 extensions?

Yes they were 02 extensions.

thecooltype · 02-09-2022, 08:32 PM

Quote:

Originally Posted by Kriz2fer

Is it dangerous to run a cat less downpipe with no tune? Cars a 2022 so no times available.

Why do that? No tune should equal no Dp upgrade...Sounds like putting an M badge on a non M car

Quote:

Originally Posted by mike@x-ph.com

Quote:

Originally Posted by F32 N55

Sorry, I wouldn't say ignore. What if the initial CEL masks a second CEL that is more serious?

I'd say monitor.... but, not my car.

It wouldn't hurt to check the car code every now and then

Too much work

01-03-2022, 12:05 AM	#1
Kriz2fer Second Lieutenant 112 Rep 253 Posts Drives: Bmw m550 Join Date: Dec 2021 Location: Oregon iTrader: (0)	M550 downpipe no tune? Is it dangerous to run a cat less downpipe with no tune? Cars a 2022 so no times available.
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01-03-2022, 08:23 AM	#2
Boosted_8 Captain 436 Rep 749 Posts Drives: M550i Join Date: Apr 2021 Location: UK iTrader: (0)	Just remove the secondary cats for no ill effects. Removing the primary cats causes CEL and cannot be tuned yet anyway as you stated.
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01-21-2022, 04:48 PM	#6
Kriz2fer Second Lieutenant 112 Rep 253 Posts Drives: Bmw m550 Join Date: Dec 2021 Location: Oregon iTrader: (0)	Ordered the vsr down pipes. We’ll see how well they fit.
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01-21-2022, 06:15 PM	#8
zinner Major 559 Rep 1,127 Posts Drives: `17 X5 35d/`15 335i/`18 M550IX Join Date: Oct 2014 Location: Raleigh, NC iTrader: (0)	Remember when the JB4 would auto-clear the cat codes ? Might still do that if you make it think it's outside the continental united states Been a few years, not sure that is still an option.
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01-22-2022, 12:33 PM	#9
Boosted_8 Captain 436 Rep 749 Posts Drives: M550i Join Date: Apr 2021 Location: UK iTrader: (0)	No that feature is dead in new BMWs, only works when the car is in diagnostic mode.
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01-22-2022, 12:37 PM	#11
Boosted_8 Captain 436 Rep 749 Posts Drives: M550i Join Date: Apr 2021 Location: UK iTrader: (0)	Leib automotive in Germany have a solution but it uses up the OBD port permanently
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02-02-2022, 02:24 AM	#12
Kriz2fer Second Lieutenant 112 Rep 253 Posts Drives: Bmw m550 Join Date: Dec 2021 Location: Oregon iTrader: (0)	Wow just finished installing those Down pipes. What a pain in the! I did it with 2 jack stands in my garage. Took about 2 days working here and there. The car sounds good though, pops like crazy even in comfort mode.
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02-02-2022, 10:57 PM	#14
editdata New Member 18 Rep 12 Posts Drives: 2020 Bmw M550i Join Date: Feb 2022 Location: chicago iTrader: (0)	I thought you could run with the o2 extensions and have no problems
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02-06-2022, 04:39 PM	#17
Kriz2fer Second Lieutenant 112 Rep 253 Posts Drives: Bmw m550 Join Date: Dec 2021 Location: Oregon iTrader: (0)	I ordered 4 I’ll let you know if it works. They have the mini cats.
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