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Old 04-09-2010, 02:37 AM   #1
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Default Exhausts with twin cats?

OK, I like my rusted out magnaflow exhaust.
Sounds great at the track at WOT, but driving on city streets it's obnoxious.
It sounds like a rusted out muffler. Go figure.

Any suggestions?
I will probably get another magnaflow if I can find the part number.
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Old 04-09-2010, 03:47 AM   #2
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I have a Magnaflow I bought from ebay. It is stainless, but it is not a high grade stainless so I expect that it will eventually rust too. The tubes are 419 stainless and so is the welding wire that I used, so it will probably outlast the muffler, but I'm not too concerned.

I do love the way these sound. I will say that around 2500 rpm it does resonate in the cabin and it is loud, but above 3K rpm's it quiets down and sounds good. Driving through my neighborhood I can set off car alarms with it
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Click image for larger version Name:	magnaflow_1.jpg Views:	449 Size:	88.5 KB ID:	9599   Click image for larger version Name:	magnaflow_2.jpg Views:	395 Size:	90.8 KB ID:	9600   Click image for larger version Name:	magnaflow_3.jpg Views:	382 Size:	92.9 KB ID:	9601  

Click image for larger version Name:	magnaflow_4.jpg Views:	375 Size:	89.1 KB ID:	9602  
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Alpine Weiß 1995 318ti
M50tu mostly stock, chip'd 413, AFE Intake. e36 M3 front brakes, e30 M3 rear calipers. e28 3.25 LSD + e30 axles. Custom stainless Magnaflow 2 in 1 out muffler.

R.I.P schwartz 1990 325is
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Old 04-09-2010, 04:39 AM   #3
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I used to set of alarms too.
I'd do it on purpose when I found an annoying alarm.

Do you recall the model number?
Does that one have a 3" tip?
Mine does. It's too ricey for my taste.
I'd like to find dual tips.
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Old 04-09-2010, 11:46 PM   #4
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Steve, do you have a resonator on your exhaust? From the sounds of it your resonator could be bad?
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Old 04-10-2010, 12:27 AM   #5
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Quote:
Originally Posted by ChItalian1027 View Post
Steve, do you have a resonator on your exhaust? From the sounds of it your resonator could be bad?
I'd have to take a look. It's all rusted out. It's been on the car for probably more than 8 years.
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Old 04-10-2010, 01:08 AM   #6
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Quote:
Originally Posted by 1996 328ti View Post
I'd have to take a look. It's all rusted out. It's been on the car for probably more than 8 years.
Ok, I would think your resonator would be bad if you car sounds like a ricer at low RPMs
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Old 04-10-2010, 02:08 AM   #7
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Quote:
Originally Posted by ChItalian1027 View Post
Ok, I would think your resonator would be bad if you car sounds like a ricer at low RPMs
I would agree with this quote. My car does not sound anything like a ricer.
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Alpine Weiß 1995 318ti
M50tu mostly stock, chip'd 413, AFE Intake. e36 M3 front brakes, e30 M3 rear calipers. e28 3.25 LSD + e30 axles. Custom stainless Magnaflow 2 in 1 out muffler.

R.I.P schwartz 1990 325is
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Old 04-10-2010, 03:26 AM   #8
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Here's a picture of the muffler from the summer.
It's worse now.
http://www.318ti.org/forum/attachmen...6&d=1255379831
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Old 04-10-2010, 10:56 PM   #9
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Quote:
Originally Posted by 1996 328ti View Post
Here's a picture of the muffler from the summer.
It's worse now.
http://www.318ti.org/forum/attachmen...6&d=1255379831
Steve, you may need to get a new exhaust, it looks like the original exhaust.
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Old 04-10-2010, 11:23 PM   #10
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Quote:
Originally Posted by ChItalian1027 View Post
Steve, you may need to get a new exhaust, it looks like the original exhaust.
It's not the original, but yes I know. It needs to be replaced.
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Old 04-11-2010, 03:29 AM   #11
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Steve, this is the label from the box the muffler that I used came out of. Hope this helps.
Chris
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Click image for larger version Name:	Magnaflow muffler.jpg Views:	267 Size:	56.2 KB ID:	9623  
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Alpine Weiß 1995 318ti
M50tu mostly stock, chip'd 413, AFE Intake. e36 M3 front brakes, e30 M3 rear calipers. e28 3.25 LSD + e30 axles. Custom stainless Magnaflow 2 in 1 out muffler.

R.I.P schwartz 1990 325is
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Old 05-13-2010, 01:57 AM   #12
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I just ordered one from Summit.
Looking at the description, Muffler, XL 3 Chamber, 3 in. Inlet/Dual 2.50 in. Outlet, Stainless Steel, Natural, Each
http://www.summitracing.com/parts/MPE-13288/
Did you install it backwards?
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Old 05-13-2010, 03:20 AM   #13
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Sweet!

According to the muffler description it can be used either way (2-to-1 or 1-to-2). I suppose in the traditional sense as you may see it on a dual exhaust 4 cylinder Honda (splitting from 1-to-2) then yea it's backwards.
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Alpine Weiß 1995 318ti
M50tu mostly stock, chip'd 413, AFE Intake. e36 M3 front brakes, e30 M3 rear calipers. e28 3.25 LSD + e30 axles. Custom stainless Magnaflow 2 in 1 out muffler.

R.I.P schwartz 1990 325is
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Old 05-13-2010, 03:59 AM   #14
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OK, cool.
I'm going away so I should have it when I get back.
I brought the car to a shop today to be sure he would work on it.
Sure, no problem. Just pick up the exhaust and bring it in.

Only thing is I have a cat on the way out.
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Old 05-21-2010, 04:12 PM   #15
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Finally got a chance to have the muffler installed.

Wholly friggin cow, it's friggin loud.
I thought my old Dynomax was loud because of the holes.

Does this thing quiet down over time?
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Click image for larger version Name:	2010-05-21 08.54.29.jpg Views:	397 Size:	46.4 KB ID:	9908  
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