Modify OEM exhaust to sound like PE exhaust

kcalhoun27 · 10-10-2012, 04:40 AM

i replaced my stock mufflers with some magnaflows for 150 bucks and they sound great. at the end of the day, youre only going to get so much sound out of the mufflers before its either too loud with a lot of drone, or very "tinny". i tried a muffler delete at first, and that was terrible. for 150, im very happy with my exhaust

e92ben · 10-10-2012, 07:51 AM

Quote:

Originally Posted by kcalhoun27

i replaced my stock mufflers with some magnaflows for 150 bucks and they sound great. at the end of the day, youre only going to get so much sound out of the mufflers before its either too loud with a lot of drone, or very "tinny". i tried a muffler delete at first, and that was terrible. for 150, im very happy with my exhaust

Yeah I've heard a few magna flow universal muffs on a few 335s and I didn't really like the sound. I'm going for the same sound the BMW performance exhaust offers...

rismo · 10-10-2012, 08:37 AM

Did people notice that the PE is also a weight reduction. This might indicate a different buildup / material.

Beemw335 · 10-10-2012, 09:43 AM

Quote:

Originally Posted by rismo

Did people notice that the PE is also a weight reduction. This might indicate a different buildup / material.

Well it doesnt have the flap etc..but Im sire its not more than a few pounds lighter, if that.

e92ben · 10-10-2012, 10:54 AM

Quote:

Originally Posted by rismo

Did people notice that the PE is also a weight reduction. This might indicate a different buildup / material.

Yeah most likely a few pounds nothing more. No flap. No mini resonator for the extra exhaust flow when the flap is closed. Less packing inside.

e92ben · 10-10-2012, 10:59 AM

Quote:

Originally Posted by Beemw335

Quote:

Originally Posted by rismo

Did people notice that the PE is also a weight reduction. This might indicate a different buildup / material.

Well it doesnt have the flap etc..but Im sire its not more than a few pounds lighter, if that.

Also I'm pretty sure the PE is made by the same company. It's the same design and materials. With different tips, the PE tips imo don't even look good. I fully polished my oem tips and I think it looks better. BMW puts there BMW performance stamp on there for more of a exclusive look I guess. I just can't justify paying 1400 for mufflers. I can afford it but still, i was going to go with after market but i just love how minimal the drone is... I'm doing the same to my e60 M5 once this is done...

ConradConrad · 10-10-2012, 11:38 AM

e92Ben you still getting work done today?

e92ben · 10-10-2012, 05:52 PM

Quote:

Originally Posted by ConradConrad

e92Ben you still getting work done today?

Actually I just got the car back from dealer for wastegate & turbos..
So I had to reschedule with the shop Saturday 7:30 am. It's gonna happen lol I'm making sure of this. Saturday afternoon I'm gonna make a full new thread on this

DrAmazing · 10-13-2012, 03:08 PM

how'd it go

shortseller · 10-13-2012, 05:44 PM

Quote:

Originally Posted by e92ben

Also I'm pretty sure the PE is made by the same company. It's the same design and materials. With different tips, the PE tips imo don't even look good. I fully polished my oem tips and I think it looks better. BMW puts there BMW performance stamp on there for more of a exclusive look I guess. I just can't justify paying 1400 for mufflers. I can afford it but still, i was going to go with after market but i just love how minimal the drone is... I'm doing the same to my e60 M5 once this is done...

PEs are stamped made in the UK.

siegester · 10-13-2012, 09:40 PM

Have any of you seen this done on a 135i? I'm debating on giving it a shot since I have a welder and a used stock 135i exhaust can be found for around $100.

ConradConrad · 10-15-2012, 07:58 AM

Quote:

Originally Posted by cjof2003

Have any of you seen this done on a 135i? I'm debating on giving it a shot since I have a welder and a used stock 135i exhaust can be found for around $100.

I would look into the material the exhaust is made of and which type of welder you need (MIG or TIG) otherwise you will just burn through when you try to lay down a bead.

Cbozz · 10-15-2012, 08:28 AM

There is mine http://s1235.photobucket.com/albums/...0AD58471A5.mp4

Sered · 10-15-2012, 08:30 AM

Needs moar update. How did it go?

StevenY. · 10-15-2012, 10:09 AM

Anxiously waiting for success post + Write up on procedure!

e92oholic · 10-15-2012, 10:42 AM

Quote:

Originally Posted by Cbozz

There is mine http://s1235.photobucket.com/albums/...0AD58471A5.mp4

and what did you do exactly?

Sered · 10-15-2012, 01:49 PM

Quote:

Originally Posted by e60oholic

and what did you do exactly?

+1 and how does it sound on the road? parked up against a wall in a parking garage isn't the best demonstration

Cbozz · 10-15-2012, 03:59 PM

I'll get a video from the road and away from the wall.

Sered · 10-15-2012, 04:05 PM

Quote:

Originally Posted by Cbozz

I'll get a video from the road and away from the wall.

Awesome!

Did you just swap the perforated pipes with straight pipes? Remove any packing? etc?

ConradConrad · 10-15-2012, 05:18 PM

Quote:

Originally Posted by Sered

Awesome!

Did you just swap the perforated pipes with straight pipes? Remove any packing? etc?

+1

NoTempoLimitN54 · 10-17-2012, 09:57 AM

It seems to me that taking out all the packing and swapping perforated pipes for solid ones, functionally leaves you with a muffler delete that looks like stock mufflers.

AFAIK, there is no difference in restriction between a perforated straight pipe and a solid one. Think "Cherry Bomb".

Not certain about the Helmholtz resonators, but I doubt they create much restriction. Notice Dinan is using them in their exhaust.

I would definitely like to hear more exhaust sound from my 335. But I'd also like some increase in flow. And yes, a stock appearance would be desirable in PRC (People's Republic of California). If you can get the performance without drawing too much attention then all the better.

This makes me think about the 10 or so different exhaust configurations that I tried on my first generation Mazda RX-7. At one point I had headers, two straight pipe mufflers in tandem, and a Supertrapp with 18 discs. Basically straight exhaust with 3 perforated pipes and a "sound diffuser" at the outlet. Full throttle through a highway underpass sounded like a swarm of killer bees was chasing the car down.

Subscribed...

ConradConrad · 10-17-2012, 11:14 AM

So I understand the idea is to go for a PE sound which I have never heard but something comes to mind.

In my old mustang world you had SLP loudmouth series mufflers(resonators)

The louder version was completely flow through
see here for pic

Then you had the quieter more refined loudmouth 2 version
See here for pic

So I wonder if what the speculations are you leave the one perforated pipe,then cut out the little catalytic looking thing and add another perforated pipe and then pack the rest of the open space of the muffler with packing?

10-10-2012, 04:40 AM	#133
kcalhoun27 loves his turbos 17 Rep 225 Posts Drives: coupe Join Date: Oct 2009 Location: DE iTrader: (5)	i replaced my stock mufflers with some magnaflows for 150 bucks and they sound great. at the end of the day, youre only going to get so much sound out of the mufflers before its either too loud with a lot of drone, or very "tinny". i tried a muffler delete at first, and that was terrible. for 150, im very happy with my exhaust
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10-10-2012, 08:37 AM	#135
rismo Captain 75 Rep 911 Posts Drives: BMW E92 335 Join Date: Jul 2008 Location: Europe iTrader: (0)	Did people notice that the PE is also a weight reduction. This might indicate a different buildup / material. __________________ BMW 335 E92 09 - Full options - DKG - MHD by Buraq - RB Next Gen - RB Inlets/Outlet - Forge Diverter Valves - AR Catless DP - Afe Intake - Helix IC - FuelIT Stage 2 LPFP - Ar Oil Cooler - PPK Water Cooler - M3 Suspension - JRZ RS1 Shocks - Eibach Pro Springs - Drexler LSD - BMW IS Exhaust - Carbon Endurance Brake Pads - Stainless Steel Brake Lines - M101 Wheels - Michelin PS2 - M-Tech Body - M-Strutbar BMW M550i G30 2019 - BM3
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10-10-2012, 11:38 AM	#139
ConradConrad Private First Class 6 Rep 137 Posts Drives: '08 TiAg 335i Join Date: Jun 2012 Location: s.fla iTrader: (1)	e92Ben you still getting work done today?
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10-13-2012, 03:08 PM	#141
DrAmazing Private First Class 5 Rep 102 Posts Drives: '07 335i Coupe JB4 Join Date: Apr 2012 Location: Halifax, Canada iTrader: (0)	how'd it go
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10-13-2012, 09:40 PM	#143
siegester Captain 345 Rep 751 Posts Drives: '20 M340i Join Date: Jan 2011 Location: USA iTrader: (0) Garage List 2020 BMW M340i [0.00]	Have any of you seen this done on a 135i? I'm debating on giving it a shot since I have a welder and a used stock 135i exhaust can be found for around $100.
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10-15-2012, 08:28 AM	#145
Cbozz Colonel 687 Rep 2,714 Posts Drives: M3 Join Date: Feb 2012 Location: South Florida/ St. Louis iTrader: (27) Garage List 2016 BMW X5M [0.00] 08 BMW M3 [0.00] 14 BMW X5 50i - sold [0.00] 09 BMW 335i - Sold [0.00] 09 BMW 328i - Sold [0.00] 07 BMW 328i - Sold [0.00]	There is mine http://s1235.photobucket.com/albums/...0AD58471A5.mp4 __________________ Evolve, Eisenmann, Strasse, StopTech, Active Autowerke
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10-15-2012, 08:30 AM	#146
Sered Major 146 Rep 1,201 Posts Drives: 08 E90 335i Join Date: Apr 2012 Location: Melbourne, FL iTrader: (3)	Needs moar update. How did it go? __________________ '08 E90 w/ just boltons '09 Z4 sDrive35i w/ just boltons
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10-15-2012, 10:09 AM	#147
StevenY. ///M 227 Rep 2,248 Posts Drives: 10' SG e92 335i Join Date: Aug 2012 Location: NYC iTrader: (1)	Anxiously waiting for success post + Write up on procedure! __________________
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10-15-2012, 03:59 PM	#150
Cbozz Colonel 687 Rep 2,714 Posts Drives: M3 Join Date: Feb 2012 Location: South Florida/ St. Louis iTrader: (27) Garage List 2016 BMW X5M [0.00] 08 BMW M3 [0.00] 14 BMW X5 50i - sold [0.00] 09 BMW 335i - Sold [0.00] 09 BMW 328i - Sold [0.00] 07 BMW 328i - Sold [0.00]	I'll get a video from the road and away from the wall. __________________ Evolve, Eisenmann, Strasse, StopTech, Active Autowerke
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10-17-2012, 09:57 AM	#153
NoTempoLimitN54 Second Lieutenant 32 Rep 290 Posts Drives: E92 335i Join Date: Sep 2012 Location: Los Angeles, CA iTrader: (1) Garage List 2009 BMW 335i (E92) [0.00]	It seems to me that taking out all the packing and swapping perforated pipes for solid ones, functionally leaves you with a muffler delete that looks like stock mufflers. AFAIK, there is no difference in restriction between a perforated straight pipe and a solid one. Think "Cherry Bomb". Not certain about the Helmholtz resonators, but I doubt they create much restriction. Notice Dinan is using them in their exhaust. I would definitely like to hear more exhaust sound from my 335. But I'd also like some increase in flow. And yes, a stock appearance would be desirable in PRC (People's Republic of California). If you can get the performance without drawing too much attention then all the better. This makes me think about the 10 or so different exhaust configurations that I tried on my first generation Mazda RX-7. At one point I had headers, two straight pipe mufflers in tandem, and a Supertrapp with 18 discs. Basically straight exhaust with 3 perforated pipes and a "sound diffuser" at the outlet. Full throttle through a highway underpass sounded like a swarm of killer bees was chasing the car down. Subscribed... __________________ For Sale: 2009 335i 6MT (E92/N54), Sport / M-Technic / no iDrive / Black Sapphire / Black Dakota Leather, ZCW, 6FL, PDC, 19" VMR VB3, Pilot Super Sport, M3 control arms + tension links (fr) S. California
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10-17-2012, 11:14 AM	#154
ConradConrad Private First Class 6 Rep 137 Posts Drives: '08 TiAg 335i Join Date: Jun 2012 Location: s.fla iTrader: (1)	So I understand the idea is to go for a PE sound which I have never heard but something comes to mind. In my old mustang world you had SLP loudmouth series mufflers(resonators) The louder version was completely flow through see here for pic Then you had the quieter more refined loudmouth 2 version See here for pic So I wonder if what the speculations are you leave the one perforated pipe,then cut out the little catalytic looking thing and add another perforated pipe and then pack the rest of the open space of the muffler with packing?
	Appreciate 0 Quote

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