Modify OEM exhaust to sound like PE exhaust

TommyLights · 10-02-2012, 08:51 AM

^^Tuning issue?? Smh...

elim11 · 10-02-2012, 09:06 AM

Quote:

Originally Posted by 325imax

Simply removing the inside baffles is not going to make it sound good. Just louder. There is a tuning issue as well. MMW CS has been making clone Performance mufflers for years.

MMW CS makes muffler for the n52, not for the n54 correct?

shaginwagon13 · 10-02-2012, 09:32 AM

Quote:

Originally Posted by tomz_335i

I just decided to pull mine off and replace the internal cat, h pipe and all perforated pipes with straight pipes. Will post a video once I get it back from the shop in a few days (I have straight pipes on for the time being, they are loud as hell).

I did this and hated it. Everything in the cabin rattled and it was a loud sound, not a nice sound.

I threw my OEM one back on for the time being until I can come up with a solution.

TommyLights · 10-02-2012, 04:54 PM

Quote:

Originally Posted by shaginwagon13

I did this and hated it. Everything in the cabin rattled and it was a loud sound, not a nice sound.

I threw my OEM one back on for the time being until I can come up with a solution.

I hear that more when the car is cold and first started. Getting used to it but I will have the exhaust back on Saturday, so I am willing to deal for a while.

shaginwagon13 · 10-02-2012, 05:33 PM

Quote:

Originally Posted by tomz_335i

I just decided to pull mine off and replace the internal cat, h pipe and all perforated pipes with straight pipes. Will post a video once I get it back from the shop in a few days (I have straight pipes on for the time being, they are loud as hell).

Quote:

Originally Posted by tomz_335i

I hear that more when the car is cold and first started. Getting used to it but I will have the exhaust back on Saturday, so I am willing to deal for a while.

I understand what your doing, but essentially you turned your OEM exhaust into a muffler delete. Even though its in the OEM muffler housing, putting straight pipe inside is accomplishing the same as cutting the mufflers off and welding on pipe.

TommyLights · 10-02-2012, 06:16 PM

Not quite. There is an H pipe in the oem exhaust and the mufflers will quiet down most of the.drone that comes from the muffler delete I have now.

TommyLights · 10-02-2012, 06:16 PM

And so I will be the guinea pig and post videos when ready.

e92oholic · 10-02-2012, 06:25 PM

Quote:

Originally Posted by tomz_335i

And so I will be the guinea pig and post videos when ready.

When I finally get time ill put the DIY together. Are they removing the wool stuff inside?

TommyLights · 10-02-2012, 06:35 PM

Yeah, all of it.

335xi Kevo · 10-02-2012, 07:05 PM

what about making several holes maybe in those straight pipes and keeping some of the wool in the box, to reduce some of the noise, I mean it would take a lot of time to figure out the proper amount.

shaginwagon13 · 10-02-2012, 09:15 PM

Quote:

Originally Posted by tomz_335i

And so I will be the guinea pig and post videos when ready.

haha If this works I am hopping on board. I would be one to try this out but I blew $300 for my muffler delete which I had to get taken off because it was too loud.

I hope this works, please post a video!!

TommyLights · 10-03-2012, 05:35 PM

^^Thats a shitload of cash for a muffler delete. I spent 120 for mine.

shaginwagon13 · 10-03-2012, 06:08 PM

Quote:

Originally Posted by tomz_335i

^^Thats a shitload of cash for a muffler delete. I spent 120 for mine.

They welded my pipe they didn't use clamps, I got stainless steel pipe and my tips I got send out for powdercoat. I agree 300 is a lot but I wanted to give it a shot and they were the best muffler guys in the area

TommyLights · 10-03-2012, 07:39 PM

Oh ok. I would think that the powdercoating would be where the money went. They soldered mine as well with stainless.

TommyLights · 10-07-2012, 07:13 AM

Here at the muffler shop.....wish me luck fellaz....

e92oholic · 10-07-2012, 11:50 AM

Quote:

Originally Posted by tomz_335i

Here at the muffler shop.....wish me luck fellaz....

Here we go!

TommyLights · 10-07-2012, 12:07 PM

I have it on.....mechanic promised me pics later of what he did, but I got a look inside. It sounds siiick. Lots of burbling and crackling without the drone. Sounds very nice when you rev the engine and very similar to a PE exhaust.

He took out all of the insulation and perforated piping, and removed the H pipe, so its basically a straight pipe setup running through the mufflers. For some reason, the addition of the muffler through the pipes eliminates the drone. FWIW, I do have my main cats on, with the secondaries deleted.

Video up later!

E90Company · 10-07-2012, 12:38 PM

Nice! In for sound clips

Wolf 335 · 10-07-2012, 01:12 PM

cant wait to see this

Raptor04 · 10-07-2012, 01:25 PM

What size tips are those?

TommyLights · 10-07-2012, 02:38 PM

3.7 Cyba burnt titanium.

Raptor04 · 10-07-2012, 02:46 PM

Are the tips welded to stock exhaust? Where did u source them from or are they custom?

10-02-2012, 08:51 AM	#67
TommyLights Colonel 217 Rep 2,602 Posts Drives: Man Join Date: Jul 2010 iTrader: (12)	^^Tuning issue?? Smh... __________________ https://t.me/pump_upp
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10-02-2012, 06:16 PM	#72
TommyLights Colonel 217 Rep 2,602 Posts Drives: Man Join Date: Jul 2010 iTrader: (12)	Not quite. There is an H pipe in the oem exhaust and the mufflers will quiet down most of the.drone that comes from the muffler delete I have now. __________________ https://t.me/pump_upp
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10-02-2012, 06:16 PM	#73
TommyLights Colonel 217 Rep 2,602 Posts Drives: Man Join Date: Jul 2010 iTrader: (12)	And so I will be the guinea pig and post videos when ready. __________________ https://t.me/pump_upp
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10-02-2012, 06:35 PM	#75
TommyLights Colonel 217 Rep 2,602 Posts Drives: Man Join Date: Jul 2010 iTrader: (12)	Yeah, all of it. __________________ https://t.me/pump_upp
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10-02-2012, 07:05 PM	#76
335xi Kevo Lieutenant 29 Rep 497 Posts Drives: 2008 335xi Join Date: Jan 2012 Location: CT iTrader: (3)	what about making several holes maybe in those straight pipes and keeping some of the wool in the box, to reduce some of the noise, I mean it would take a lot of time to figure out the proper amount. __________________ 08' 335xi 6MT Space Metallic Grey Premium, Nav, Cold weather, Sport Procede 2.5, DCI, Forge DV, PWM, Scoops, KW V1, ETS 5" FMIC, VRSF Downpipes, M3 Skirts
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10-03-2012, 05:35 PM	#78
TommyLights Colonel 217 Rep 2,602 Posts Drives: Man Join Date: Jul 2010 iTrader: (12)	^^Thats a shitload of cash for a muffler delete. I spent 120 for mine. __________________ https://t.me/pump_upp
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10-03-2012, 07:39 PM	#80
TommyLights Colonel 217 Rep 2,602 Posts Drives: Man Join Date: Jul 2010 iTrader: (12)	Oh ok. I would think that the powdercoating would be where the money went. They soldered mine as well with stainless. __________________ https://t.me/pump_upp
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10-07-2012, 07:13 AM	#81
TommyLights Colonel 217 Rep 2,602 Posts Drives: Man Join Date: Jul 2010 iTrader: (12)	Here at the muffler shop.....wish me luck fellaz.... __________________ https://t.me/pump_upp
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10-07-2012, 12:07 PM	#83
TommyLights Colonel 217 Rep 2,602 Posts Drives: Man Join Date: Jul 2010 iTrader: (12)	I have it on.....mechanic promised me pics later of what he did, but I got a look inside. It sounds siiick. Lots of burbling and crackling without the drone. Sounds very nice when you rev the engine and very similar to a PE exhaust. He took out all of the insulation and perforated piping, and removed the H pipe, so its basically a straight pipe setup running through the mufflers. For some reason, the addition of the muffler through the pipes eliminates the drone. FWIW, I do have my main cats on, with the secondaries deleted. Video up later! Attached Images __________________ https://t.me/pump_upp
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10-07-2012, 12:38 PM	#84
E90Company Major General 196 Rep 6,136 Posts Drives: Car Join Date: Mar 2012 Location: FL iTrader: (2)	Nice! In for sound clips
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10-07-2012, 01:12 PM	#85
Wolf 335 Brigadier General 2521 Rep 3,648 Posts Drives: 2007 E92 335i Join Date: Aug 2012 Location: Toronto iTrader: (0)	cant wait to see this
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10-07-2012, 01:25 PM	#86
Raptor04 Major 93 Rep 1,074 Posts Drives: 2009 335xi Join Date: Aug 2010 Location: Florida iTrader: (7)	What size tips are those? __________________ 335xi
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10-07-2012, 02:38 PM	#87
TommyLights Colonel 217 Rep 2,602 Posts Drives: Man Join Date: Jul 2010 iTrader: (12)	3.7 Cyba burnt titanium. __________________ https://t.me/pump_upp
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10-07-2012, 02:46 PM	#88
Raptor04 Major 93 Rep 1,074 Posts Drives: 2009 335xi Join Date: Aug 2010 Location: Florida iTrader: (7)	Are the tips welded to stock exhaust? Where did u source them from or are they custom? __________________ 335xi
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