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

Quickburn7 · 05-13-2018, 04:22 PM

Quote:

Originally Posted by onfireX5

Competition Exhaust vid.

Are you happy with the exhaust? How does it sound in driving and pushing the car compared to stock?

onfireX5 · 05-13-2018, 04:37 PM

To give you some more data :

0 dB gain at idle
0 dB gain at 2000 rpm hold (basically, a high idle)
6dB gain with stationary throttle blips in the vid.

WOT under load is the best improvement.

If I rated the Factory Base stock exhaust a 0
The Akra on my X5M a 8

I'd give the Competition Exhaust a 4 or 5. Definitely worth doing, definitely enjoyable. If you like it LOUD LOUD wait for a race muffler.

At part throttle cruise and slight throttle increases, quiet as stock. It requires some load to shine.

Nice upgrade that I would do again.

GAM5OVR · 05-14-2018, 12:10 AM

Quote:

Originally Posted by onfireX5

To give you some more data :

0 dB gain at idle
0 dB gain at 2000 rpm hold (basically, a high idle)
6dB gain with stationary throttle blips in the vid.

WOT under load is the best improvement.

If I rated the Factory Base stock exhaust a 0
The Akra on my X5M a 8

I'd give the Competition Exhaust a 4 or 5. Definitely worth doing, definitely enjoyable. If you like it LOUD LOUD wait for a race muffler.

At part throttle cruise and slight throttle increases, quiet as stock. It requires some load to shine.

Nice upgrade that I would do again.

Wow thank you for this post. I’ve had mine sitting for 2 weeks because I was hesitant on it being worth the installation. I will have mine installed at the dealer tomorrow.

onfireX5 · 05-14-2018, 08:41 AM

Quote:

Originally Posted by GAM5OVR

Wow thank you for this post. I’ve had mine sitting for 2 weeks because I was hesitant on it being worth the installation. I will have mine installed at the dealer tomorrow.

Just make sure they have two (2) of 18307560815 Butt-Butt clamps or they will not finish. It came with the two clamps at the cats, I looked over the drawing and saw the other 2 clamps and ordered them as insurance.

If you want a deep note, that is pure stock at idle and at part throttle around town, but has more volume 1/3 throttle and up....this is a good system.

If you want a louder idle, louder part throttle, louder cruise sound and very loud wot.....this is not it.

I bought it to bridge the time until Akra is released in September.....but I do not want a police magnet....I might just keep this system as a cool balance.

GAM5OVR · 05-15-2018, 03:34 AM

Quote:

Originally Posted by onfireX5

Just make sure they have two (2) of 18307560815 Butt-Butt clamps or they will not finish. It came with the two clamps at the cats, I looked over the drawing and saw the other 2 clamps and ordered them as insurance.

If you want a deep note, that is pure stock at idle and at part throttle around town, but has more volume 1/3 throttle and up....this is a good system.

If you want a louder idle, louder part throttle, louder cruise sound and very loud wot.....this is not it.

I bought it to bridge the time until Akra is released in September.....but I do not want a police magnet....I might just keep this system as a cool balance.

Nice! I’m on the same boat just trying to mess around with it till Akra drops their exhaust system. Not really looking for something super loud just yet. I’m ok with a change while WOT. Does it burble more/louder while at higher RPMs? I will be getting my car back tomorrow so I’m kinda anxious.

jjjjjjjjjjjjj · 05-15-2018, 04:22 AM

Quote:

Originally Posted by onfireX5

There are 3 factory exhaust systems:

3. MPerformance which is all Tianium and $8,500ish and will be released soon.

do you have any information when the M performance is out?

Carmelle · 05-15-2018, 05:03 AM

Quote:

Originally Posted by onfireX5

To give you some more data :

0 dB gain at idle
0 dB gain at 2000 rpm hold (basically, a high idle)
6dB gain with stationary throttle blips.

WOT under load is the best improvement.

If I rated the Factory Base stock exhaust a 0
The Akra on my X5M a 8

I'd give the Competition Exhaust a 4 or 5. Definitely worth doing, definitely enjoyable. If you like it LOUD LOUD wait for a race muffler.

how would you rate it vs say the E63?

onfireX5 · 05-15-2018, 07:36 AM

Quote:

Originally Posted by GAM5OVR

Nice! I’m on the same boat just trying to mess around with it till Akra drops their exhaust system. Not really looking for something super loud just yet. I’m ok with a change while WOT. Does it burble more/louder while at higher RPMs? I will be getting my car back tomorrow so I’m kinda anxious.

The burbles do sound better. It does take the DME a few miles to learn the change as strange as that sounds.

onfireX5 · 05-15-2018, 07:38 AM

Quote:

Originally Posted by jjjjjjjjjjjjj

do you have any information when the M performance is out?

All the press claims by the end of June.

onfireX5 · 05-15-2018, 07:39 AM

Quote:

Originally Posted by Carmelle

how would you rate it vs say the E63?

Sorry, but I have never heard their system.

drewzMMM · 05-15-2018, 09:30 AM

Very informative post. Thanks for sharing this. Adding this to list of mods...

tcw495 · 05-15-2018, 01:51 PM

Does this affect your warranty at all, since it is a BMW OEM system?

onfireX5 · 05-15-2018, 02:00 PM

Quote:

Originally Posted by tcw495

Does this affect your warranty at all, since it is a BMW OEM system?

No.

tcw495 · 05-15-2018, 06:53 PM

Just ordered my parts from my local dealer to do the same exhaust modification. Should arrive in 2 weeks or so.

sirvanny · 05-16-2018, 11:32 AM

Sounds amazing!!

Cyberbug · 05-16-2018, 11:33 AM

Great info,thank you

rjd598 · 05-16-2018, 12:05 PM

Quote:

Originally Posted by tcw495

Does this affect your warranty at all, since it is a BMW OEM system?

you literally answered your own question

kalslasie · 05-16-2018, 12:06 PM

Quote:

Originally Posted by onfireX5

Quote:

Originally Posted by GAM5OVR

I picked mine up as well and was so confused on how similar they both looked.

Inside there are less holes. One quick installation tip for you :

I measured a billion times last night to mark the cuts on the factory exhaust for today's install. Each place I marked had a factory mark (dimple) already on the factory exhaust. That CAN NOT be a coincidence. Look for it on your stock pipes on the bottom.

BMW does this on almost all of their cars! it is true, got my MPerf exhaust and the guy who welded it told me every BMW he did had that dot marks!

tcw495 · 05-16-2018, 12:24 PM

Quote:

Originally Posted by rjd598

you literally answered your own question

Thanks- I won't ask again.

drew_larson · 05-16-2018, 02:53 PM

The mperformance definitely cracks more now! You should set up a gopro and record it when its under load

rjd598 · 05-16-2018, 03:38 PM

Quote:

Originally Posted by tcw495

Thanks- I won't ask again.

you're very most welcome, sir.

uniqueMR · 05-16-2018, 03:58 PM

Nice

05-13-2018, 04:37 PM	#24
onfireX5 Brigadier General 3618 Rep 4,532 Posts Drives: F90M5,F85X5M Join Date: Jul 2015 Location: Va iTrader: (0)	To give you some more data : 0 dB gain at idle 0 dB gain at 2000 rpm hold (basically, a high idle) 6dB gain with stationary throttle blips in the vid. WOT under load is the best improvement. If I rated the Factory Base stock exhaust a 0 The Akra on my X5M a 8 I'd give the Competition Exhaust a 4 or 5. Definitely worth doing, definitely enjoyable. If you like it LOUD LOUD wait for a race muffler. At part throttle cruise and slight throttle increases, quiet as stock. It requires some load to shine. Nice upgrade that I would do again.
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05-15-2018, 09:30 AM	#33
drewzMMM Second Lieutenant 97 Rep 254 Posts Drives: Future M5 F90 Owner Join Date: Feb 2018 Location: NYC iTrader: (0)	Very informative post. Thanks for sharing this. Adding this to list of mods... __________________ Mildred: 2006 M5 E60 Indianapolis Red/Sepang/Piano Black R.I.P.
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05-15-2018, 01:51 PM	#34
tcw495 Captain 271 Rep 668 Posts Drives: F90 M5 Join Date: Apr 2018 Location: Potomac, MD iTrader: (0)	Does this affect your warranty at all, since it is a BMW OEM system?
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05-15-2018, 06:53 PM	#36
tcw495 Captain 271 Rep 668 Posts Drives: F90 M5 Join Date: Apr 2018 Location: Potomac, MD iTrader: (0)	Just ordered my parts from my local dealer to do the same exhaust modification. Should arrive in 2 weeks or so.
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05-16-2018, 11:32 AM	#37
sirvanny Private First Class 65 Rep 193 Posts Drives: 2015 435I Join Date: Dec 2017 Location: los angeles iTrader: (2)	Sounds amazing!! __________________ __________________ INSTA: vannyf32
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05-16-2018, 11:33 AM	#38
Cyberbug Private 29 Rep 59 Posts Drives: HP4 Join Date: Feb 2018 Location: NJ iTrader: (0) Garage List 2013 HP4 Competition [0.00]	Great info,thank you
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05-16-2018, 02:53 PM	#42
drew_larson Private 39 Rep 86 Posts Drives: 2017 BMW 328d Xdrive Join Date: Jul 2016 Location: Lake Tahoe iTrader: (0)	The mperformance definitely cracks more now! You should set up a gopro and record it when its under load
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05-16-2018, 03:58 PM	#44
uniqueMR Colonel 1881 Rep 2,923 Posts Drives: ... Join Date: Dec 2017 Location: USA iTrader: (0)	Nice __________________ Currently: '24 Mercedes G63 \| '24 Porsche GT3 RS \| '24 Volkswagen GTI Previous BMWs: 340i, 740i, 745Li, M3, M4 Previous Others: Audi, Ducati, Honda, Infiniti, Land Rover, Mercedes-Benz, MINI, Mitsubishi, Porsche, Toyota, Volkswagen
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