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Tech Forum : Magnaflow, Dynomax, or stock???

- BMW E21 Community
   - Tech Forum
      - Magnaflow, Dynomax, or stock???
MayanArch   Posted Tuesday, Jun 19th 7:48pm [Edit] [Quote] [IMS] [View car]
Member
Post nr. 1283
   
Florida, USA
Baur E21 2.7 1982, Baur E30 318i 1985, 323i 1978
I dont want my Baur to sound like a mustang or a rice cooker!!!

What exhaust mufflers should I go with. Dynomax is known for being quiet, but Magnaflow has the circular shape that mimicks stock.

Please help me keep my ride from sounding pimp'd up.

BruceH   Posted Wednesday, Jun 20th 5:54am [Edit] [Quote] [IMS] [View car]
Member
Post nr. 1133
   
Atlanta, GA USA
81 323 Baur, 85 745
I am starting to think about the same. A buddy has redone his M Coupe with Magnaflow and it sounds very good. Not ricey.

KenDanielson   Posted Wednesday, Jun 20th 6:06am [Edit] [Quote] [IMS] [View car]
Junior Member
Post nr. 192

Petaluma CA
'82 320is, '78 320i
Dynomax 17-141 super turbo muffler is a good choice, it's round and fits in the stock location with little effort. It's a reverse flow with rounded diverters in the ends to guide the gases for better flow. It has a nice deep tone with no ricyness at all.

The Dynomax 17-230 is a 6" straight through race muffler, I use one on my warmed up 2.0L in my '82 with an Edelbrock RPM muffler in the resonator location. This combination shows no loss in power over straight through pipes, the muffler cores are perforated-not louvered. It sounds REALLY good.

These are all 2.5" in and out and when used with a custom mandrel bent exhaust they work great.

ken

MayanArch   Posted Wednesday, Jun 20th 7:56pm [Edit] [Quote] [IMS] [View car]
Member
Post nr. 1285
   
Florida, USA
Baur E21 2.7 1982, Baur E30 318i 1985, 323i 1978
BruceH wrote:
I am starting to think about the same. A buddy has redone his M Coupe with Magnaflow and it sounds very good. Not ricey.


Bruce...dont you have headers with stock pipes?

I thought you were happy with that. Why the change?

Ken,

I there a way to keep the stock E21 chrome tips on these without restricting flow?

MayanArch   Posted Thursday, Jun 21st 3:15am [Edit] [Quote] [IMS] [View car]
Member
Post nr. 1286
   
Florida, USA
Baur E21 2.7 1982, Baur E30 318i 1985, 323i 1978
KenDanielson wrote:
Dynomax 17-141 super turbo muffler is a good choice, it's round and fits in the stock location with little effort. It's a reverse flow with rounded diverters in the ends to guide the gases for better flow. It has a nice deep tone with no ricyness at all.

The Dynomax 17-230 is a 6" straight through race muffler, I use one on my warmed up 2.0L in my '82 with an Edelbrock RPM muffler in the resonator location. This combination shows no loss in power over straight through pipes, the muffler cores are perforated-not louvered. It sounds REALLY good.

These are all 2.5" in and out and when used with a custom mandrel bent exhaust they work great.

ken


Ken,

I have looked in Froogle, Jegs, eBay, and other sites and cannot find the 17-141 model. Can you confirm that model number and info, please.

KenDanielson   Posted Thursday, Jun 21st 4:50am [Edit] [Quote] [IMS] [View car]
Junior Member
Post nr. 192

Petaluma CA
'82 320is, '78 320i
Sorry, I couldn't read my own notes correctly...

17-741 is the correct number.

ken

BruceH   Posted Thursday, Jun 21st 7:17am [Edit] [Quote] [IMS] [View car]
Member
Post nr. 1134
   
Atlanta, GA USA
81 323 Baur, 85 745
Nope, pure stock exhaust for me.

MayanArch   Posted Thursday, Jun 21st 6:16pm [Edit] [Quote] [IMS] [View car]
Member
Post nr. 1287
   
Florida, USA
Baur E21 2.7 1982, Baur E30 318i 1985, 323i 1978
Thanks Ken......that was it. Got two of them for $88.00 including shipping.


DHoang   Posted Sunday, Jul 15th 12:11am [Edit] [Quote] [IMS] [View car]
Member
Post nr. 343
   
Texas USA
323i, e39 528i, Maserati Spider, Tundra LTD V8 p/up
Can I ask where you got them at? Price sounds reasonable.

MayanArch   Posted Sunday, Jul 15th 1:57am [Edit] [Quote] [IMS] [View car]
Member
Post nr. 1317
   
Florida, USA
Baur E21 2.7 1982, Baur E30 318i 1985, 323i 1978
Summit Racing

wayfast   Posted Monday, Jul 16th 2:02am [Edit] [Quote] [IMS] [View car]
Member
Post nr. 11

Belleville, Michigan
81 323i
they are $50 each now from summit...

there is a company named walker that makes these also... i think they are just rebadged dynomaxs? they even have the same Part number.

$35 each http://autotruckpart.com/product.php?productid=156312

nvm don't buy from there.. bad feedback http://www.starquestclub.com/forums/viewtopic.php?p=550396&sid=3f66278d2733297c320d180c1aca6392


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