F90 M5 M Sport / Competition Exhaust arrived. Videos, install pics and decibels info.

onfireX5 · 01-23-2019, 06:49 AM

Quote:

Originally Posted by soooma

So to confirm I understand this thread correctly

There’s no difference to be gained from having the M sport then resonator delete as compared to regular F90 exhaust with resonator delete ! Or there’s something else to M Sport ? Like rear muffler air software ?

Thanks

M Sport Comp resonator has less perforated internals and is louder than the base F90. That is the only mechanical exhaust difference. The program in the Comp DME is supposed to open the same valves in the same rear mufflers sooner.

An X pipe removes the resonator entirely, so zero perforations and is louder than MSport/Comp.

soooma · 01-23-2019, 08:30 AM

Quote:

Originally Posted by onfireX5

Quote:

Originally Posted by soooma

So to confirm I understand this thread correctly

There's no difference to be gained from having the M sport then resonator delete as compared to regular F90 exhaust with resonator delete ! Or there's something else to M Sport ? Like rear muffler air software ?

Thanks

M Sport Comp resonator has less perforated internals and is louder than the base F90. That is the only mechanical exhaust difference. The program in the Comp DME is supposed to open the same valves in the same rear mufflers sooner.

An X pipe removes the resonator entirely, so zero perforations and is louder than MSport/Comp.

Awesome
X pipe it is
Here's a picture of what's to be installed today
Magnaflo

Thank you for help and info OnfireX5

soooma · 01-23-2019, 08:43 AM

Quote:

Originally Posted by onfireX5

Quote:

Originally Posted by soooma

So to confirm I understand this thread correctly

There's no difference to be gained from having the M sport then resonator delete as compared to regular F90 exhaust with resonator delete ! Or there's something else to M Sport ? Like rear muffler air software ?

Thanks

M Sport Comp resonator has less perforated internals and is louder than the base F90. That is the only mechanical exhaust difference. The program in the Comp DME is supposed to open the same valves in the same rear mufflers sooner.

An X pipe removes the resonator entirely, so zero perforations and is louder than MSport/Comp.

One seemingly stupid question

Why you guys seem sure there's nothing else but the resonator that separates the Comp from Regular M5 exhaust?

Do they share same rear mufflers PART NUMBERS?

Also what about that "early valve opening", there's no remedy for that on the Regular M5 after the Resonator delete and X pipe placement in lieu of that? Why would it matter if calves are open in Super Sports?

Forgive my sheer ignorance

onfireX5 · 01-23-2019, 09:11 AM

Quote:

Originally Posted by soooma

One seemingly stupid question

Why you guys seem sure there's nothing else but the resonator that separates the Comp from Regular M5 exhaust?

Do they share same rear mufflers PART NUMBERS?

Also what about that "early valve opening", there's no remedy for that on the Regular M5 after the Resonator delete and X pipe placement in lieu of that? Why would it matter if calves are open in Super Sports?

Forgive my sheer ignorance

We are sure because BMW defined The MSport upgrade and sells it as the MSPORT upgrade. Even marked the standard F90 exhaust cut line to install the MSPORT upgrade.

The valving program is minor. Should help with more part throttle burbles. At wot, open valves are open valves.

soooma · 01-23-2019, 09:13 AM

Quote:

Originally Posted by onfireX5

Quote:

Originally Posted by soooma

One seemingly stupid question

Why you guys seem sure there's nothing else but the resonator that separates the Comp from Regular M5 exhaust?

Do they share same rear mufflers PART NUMBERS?

Also what about that "early valve opening", there's no remedy for that on the Regular M5 after the Resonator delete and X pipe placement in lieu of that? Why would it matter if calves are open in Super Sports?

Forgive my sheer ignorance

We are sure because BMW defined The MSport upgrade and sells it as the MSPORT upgrade. Even marked the standard F90 exhaust cut line to install the MSPORT upgrade.

The valving program is minor. Should help with more part throttle burbles. At wot, open valves are open valves.

I didn't know
Thank you a million

soooma · 01-23-2019, 03:44 PM

Quote:

Originally Posted by onfireX5

Quote:

Originally Posted by soooma

One seemingly stupid question

Why you guys seem sure there's nothing else but the resonator that separates the Comp from Regular M5 exhaust?

Do they share same rear mufflers PART NUMBERS?

Also what about that "early valve opening", there's no remedy for that on the Regular M5 after the Resonator delete and X pipe placement in lieu of that? Why would it matter if calves are open in Super Sports?

Forgive my sheer ignorance

We are sure because BMW defined The MSport upgrade and sells it as the MSPORT upgrade. Even marked the standard F90 exhaust cut line to install the MSPORT upgrade.

The valving program is minor. Should help with more part throttle burbles. At wot, open valves are open valves.

Here it is after install
What do you think OnfireX5?

onfireX5 · 01-23-2019, 05:09 PM

Quote:

Originally Posted by soooma

Here it is after install
What do you think OnfireX5?

That will work very well !!

Now, a bit more migging....

soooma · 01-23-2019, 06:33 PM

Quote:

Originally Posted by onfireX5

That will work very well !!

Now, a bit more migging....

Actually those in previous post were before welding,
Silly me
Here's the FINAL picture
Took several hours because shop insisted on taking down the whole exhaust to do it right! Very nice shop,

Love the results!
They drove it and I watched and sounded amazing but again, damn this car is super too insulated!! With all windows done I hardly hear the exhaust still

Let me know what you think about this RESONATOR DELETE job,

onfireX5 · 01-23-2019, 07:50 PM

Quote:

Originally Posted by soooma

Actually those in previous post were before welding,
Silly me
Here's the FINAL picture
Took several hours because shop insisted on taking down the whole exhaust to do it right! Very nice shop,

Love the results!
They drove it and I watched and sounded amazing but again, damn this car is super too insulated!! With all windows done I hardly hear the exhaust still

Let me know what you think about this RESONATOR DELETE job,

That's a GREAT JOB. Will flow well and sound good. Be sure your valve button is lit. Put it in M mode and enjoy !

soooma · 01-23-2019, 08:18 PM

Quote:

Originally Posted by onfireX5

That's a GREAT JOB. Will flow well and sound good. Be sure your valve button is lit. Put it in M mode and enjoy !

Thank you sir

MWcoupe · 01-23-2019, 08:56 PM

Video clip?

soooma · 01-23-2019, 10:04 PM

Quote:

Originally Posted by MWcoupe

Video clip?

They did
I didn’t
I will though later

windtendo · 01-24-2019, 09:52 AM

Very cool and cost effective exhaust mod soooma! Can't wait to hear the difference!

Where did you source the magnaflow piece?

01-23-2019, 08:56 PM	#121
MWcoupe 24k GOLD 148 Rep 1,453 Posts Drives: Mineral White M4 Join Date: Jul 2006 Location: BROOKLYN NY iTrader: (0)	Video clip?
	Appreciate 0 Quote

01-24-2019, 09:52 AM	#123
windtendo Lieutenant Colonel 1716 Rep 1,909 Posts Drives: 2023 M5C Join Date: Apr 2013 Location: Houston iTrader: (1) Garage List 2023 BMW M5C [0.00] 1989 BMW M3 [0.00]	Very cool and cost effective exhaust mod soooma! Can't wait to hear the difference! Where did you source the magnaflow piece?
	Appreciate 1 soooma1377.50 Quote