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      07-17-2014, 10:07 PM   #1
soooma
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Competition Package Mufflers On Sale WORTH IT?

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Hello M5 forum members -
A quick question please

I am thinking about pulling the trigger on CP OEM Mufflers that are for sale for less than 1k
But my question for you is?

How much is the gain going to be on top of my 2014 LCI Non Competition with Exhauste Meister that I will probably keep for the CP Mufflers?

Any input from someone who had listened to both CP and Non CP LCI 2014 both? As I believe LCI Non CP is louder than 2013 anyway.

Thank you
And if any of you have them for sale and can give me a better deal too let me know I will pay using Paypal.
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      07-17-2014, 10:20 PM   #2
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listened to both!
all the guys saying its louder, trying to justify a fraction of 7.3k or whatever the price of CP option is
its tiny bit louder, but not the way they describe it

u will have placebo effect
nothing else
u wont hear much difference, but you will think you got a crazy difference, because you paid around 1k for mufflers + labour, however after 1 week of driving u wont be able to notice any difference at all and you will start biting your elbows.
plus stock exhaust is 1 piece, if you are willing to cut your exhaust to weld in CP mufflers, you better cut resonators out and then weld them back in, when you need to return your car. some people say they get a bit of drone, some people say they dont get any drone.

best bang for the buck would be e-sport/e-race backbox
search for used exhaust, eisenmann holds value if you buy used and easy to sell, like hot pies.
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      07-17-2014, 10:34 PM   #3
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Quote:
Originally Posted by mstmng View Post
listened to both!
all the guys saying its louder, trying to justify a fraction of 7.3k or whatever the price of CP option is
its tiny bit louder, but not the way they describe it

u will have placebo effect
nothing else
u wont hear much difference, but you will think you got a crazy difference, because you paid around 1k for mufflers + labour, however after 1 week of driving u wont be able to notice any difference at all and you will start biting your elbows.
plus stock exhaust is 1 piece, if you are willing to cut your exhaust to weld in CP mufflers, you better cut resonators out and then weld them back in, when you need to return your car. some people say they get a bit of drone, some people say they dont get any drone.

best bang for the buck would be e-sport/e-race backbox
search for used exhaust, eisenmann holds value if you buy used and easy to sell, like hot pies.
Thank you sir
Feedback I am looking for
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      07-17-2014, 10:50 PM   #4
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Hello M5 forum members -
Hello Soooma
How are you doing bud?
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      07-17-2014, 10:55 PM   #5
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Hello Soooma
How are you doing bud?
Doing well bro
Hope you are -
Any idea about CP vs Non CP Sound M6-Coupe?
Heard both Back to Back yourself ?
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      07-17-2014, 11:06 PM   #6
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Doing well bro
Hope you are -
Any idea about CP vs Non CP Sound M6-Coupe?
Heard both Back to Back yourself ?
well I, personally like neither the Non-CP sound nor CP , but I like M5/M6 with or without sound Today, on the way home I saw a gorgeous MCB M5... we just challenged each other a bit... it was fun... two monsters side by side
back on topic, if I want to do something about my car sound, I will definitely go for Meisterschaft exhaust.... it's stunning (IMO)

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      07-17-2014, 11:13 PM   #7
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Originally Posted by M6-Coupe View Post
well I, personally like neither the Non-CP sound nor CP , but I like M5/M6 with or without sound Today, on the way home I saw a gorgeous MCB M5... we just challenged each other a bit... it was fun... two monsters side by side
back on topic, if I want to do something about my car sound, I will definitely go for Meisterschaft exhaust.... it's stunning (IMO)

Hate you -
Just kidding
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      07-18-2014, 12:04 AM   #8
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The sound increase is noticeable but still maintains stealthiness with a lower growl and a small bump in db. During my ED heads would turn when driving by at low to mid rpm ranges.

The sound is not like akra or any of the others that are meant to be more noticeable head turners from a few blocks.

As far as hp gain I would say less than 5???

One more benefit Is the black chrome tips. They look great on the car.
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      07-18-2014, 12:43 AM   #9
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HEY BUDDY, IDK if you remember me but I deleted my resonators. The cp exhaust sounds good but not much increase to pay almost a grand for it. Resonator deleted cost me only $100
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      07-18-2014, 05:22 AM   #10
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Quote:
Originally Posted by N.S.A View Post
HEY BUDDY, IDK if you remember me but I deleted my resonators. The cp exhaust sounds good but not much increase to pay almost a grand for it. Resonator deleted cost me only $100
And how does the car feel now after resonators delete?
Any less MPG?
Any power loss feeling?
Looked at it again then still did it because you hesitated because of possible power loss and back pressure and turbo spooling issues?
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      07-18-2014, 05:25 AM   #11
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Quote:
Originally Posted by soooma View Post
And how does the car feel now after resonators delete?
Any less MPG?
Any power loss feeling?
Looked at it again then still did it because you hesitated because of possible power loss and back pressure and turbo spooling issues?
power loss? turbo spooling issues?

where is this one coming from?
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      07-18-2014, 07:42 AM   #12
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Quote:
Originally Posted by mstmng View Post
power loss? turbo spooling issues?

where is this one coming from?
Research resonators delete -
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      07-18-2014, 12:10 PM   #13
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Quote:
Originally Posted by soooma View Post
Research resonators delete -
doesnt make sense to me tbh

i dont even have back box/mufflers
and my bangs are louder than yours in other words i have no place for pressure to build up and my car was pulling much stronger than any m5 i raced, even before i added dp's
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      07-18-2014, 01:25 PM   #14
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Quote:
Originally Posted by Spinny02 View Post
The sound increase is noticeable but still maintains stealthiness with a lower growl and a small bump in db. During my ED heads would turn when driving by at low to mid rpm ranges.

The sound is not like akra or any of the others that are meant to be more noticeable head turners from a few blocks.

One more benefit Is the black chrome tips. They look great on the car.
Totally agree with this. CP exhaust is slightly more aggressive than stock at low to mid rpm ranges. At the top end they sound similar.

Have a listen to the CP videos in the following post (1st & 3rd); this may give you some idea of how the CP exhaust sounds from inside the car: -

http://f10.m5post.com/forums/showthread.php?t=952248

Many of the aftermarket exhaust options have better sound/dBs than CP.
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      07-18-2014, 01:37 PM   #15
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Quote:
Originally Posted by mstmng View Post
doesnt make sense to me tbh

i dont even have back box/mufflers
and my bangs are louder than yours in other words i have no place for pressure to build up and my car was pulling much stronger than any m5 i raced, even before i added dp's
Music to my ears sir
It seems anecdotal then !!
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      07-18-2014, 02:03 PM   #16
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Quote:
Originally Posted by mstmng View Post
power loss? turbo spooling issues?

where is this one coming from?
Do you use Stainless Steel Pipes or Just Aluminized are ok?
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      07-18-2014, 02:20 PM   #17
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Quote:
Originally Posted by N.S.A View Post
HEY BUDDY, IDK if you remember me but I deleted my resonators. The cp exhaust sounds good but not much increase to pay almost a grand for it. Resonator deleted cost me only $100
N.S.A
What happened after resonators delete?
Please elaborate
I can't wait to hear feedback on that -
Does it have to be SS pipes?
Low RPM?
HIGH RPM?
Cabin?
Outside?
Downshifts and up shifts?
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      07-18-2014, 02:33 PM   #18
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Quote:
Originally Posted by soooma View Post
Do you use Stainless Steel Pipes or Just Aluminized are ok?
you can see in my signature, i use RPI GTM
pretty sure its Stainless Steel

you can find the latest video in this thread

http://f10.m5post.com/forums/showthread.php?t=1011877

need a better mic though
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      07-18-2014, 03:33 PM   #19
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Quote:
Originally Posted by soooma View Post
And how does the car feel now after resonators delete?
Any less MPG?
Any power loss feeling?
Looked at it again then still did it because you hesitated because of possible power loss and back pressure and turbo spooling issues?
I Have got like 0.2mpg less maybe its just I been pushing it a lot since the exhaust sounds way better now haha. It honestly feels faster. it increases air flow so you probably get 1 or 2hp more. I see you saying it causes turbo spoils. I highly doubt that and the exhaust shop told me it is no harm and it does increase air flow its 100% safe. Otherwise I would of not done it.
Quote:
Originally Posted by mstmng View Post
doesnt make sense to me tbh

i dont even have back box/mufflers
and my bangs are louder than yours in other words i have no place for pressure to build up and my car was pulling much stronger than any m5 i raced, even before i added dp's
I agree with you 100%
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      07-18-2014, 03:35 PM   #20
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Quote:
Originally Posted by N.S.A View Post
I Have got like 0.2mpg less maybe its just I been pushing it a lot since the exhaust sounds way better now haha. It honestly feels faster. it increases air flow so you probably get 1 or 2hp more. I see you saying it causes turbo spoils. I highly doubt that and the exhaust shop told me it is no harm and it does increase air flow its 100% safe. Otherwise I would of not done it.


I agree with you 100%
Thank you sir
I am so doing it -
Between this and CP mufflers I will have Frankenstein type of exhauste but heck if it's gonna me give me the aural satisfaction I am looking for.

Thank you for such valuable input sir -
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      07-18-2014, 03:39 PM   #21
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Quote:
Originally Posted by soooma View Post
N.S.A
What happened after resonators delete?
Please elaborate
I can't wait to hear feedback on that -
Does it have to be SS pipes?
Low RPM?
HIGH RPM?
Cabin?
Outside?
Downshifts and up shifts?
Sorry the delay I was in a business meeting Sooma.

But What you mean SS pipes?

FROM 3000RPM IF I LET GO of the exhaust it pops really loud and sounds gorgeous. High rpm has a extremely loud pop and you hear it in the cabin but there is no nasty drone. Outside is a lot better to be honest. it sounds better on up shifts but at 3000rpm IF I let go there is a loud drone pop but its sounds nice. Cold start I will post a video of it soon. But Here is the video I sent you for a normal start with some revs.
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      07-18-2014, 03:56 PM   #22
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Quote:
Originally Posted by N.S.A View Post
Sorry the delay I was in a business meeting Sooma.

But What you mean SS pipes?

FROM 3000RPM IF I LET GO of the exhaust it pops really loud and sounds gorgeous. High rpm has a extremely loud pop and you hear it in the cabin but there is no nasty drone. Outside is a lot better to be honest. it sounds better on up shifts but at 3000rpm IF I let go there is a loud drone pop but its sounds nice. Cold start I will post a video of it soon. But Here is the video I sent you for a normal start with some revs.
Love it
I am so doing it
I may remove the whole exhaust as well this way!!
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