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Old 02-04-2008, 07:34 PM   #1
kimoman
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Default Resonator question

I have stormung catback and am looking to add a resonator to it since it is a little to loud for my taste and will be adding a RT high flow cat in the future. Question is where is the best place to get one . I want a good quality resonator not some ebay crap since I already spent good money on the stromung.
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Old 02-04-2008, 08:56 PM   #2
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stromung will make you a midpipe with resonator.. they have a 12" and 18" resonator that they use on their BMW exhaust and its supposed to do a good job of quieting it down and tuning out some of the rasp. Just tell them which length you want. They dont show this on the website but just call and ask for it. They said they would make me one for the price of the resonator ($45) i think and then the price of the midpipe of course. Cant go wrong with stromung.
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Old 02-05-2008, 11:56 AM   #3
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I'm going the same way. My borla is ridiculously loud.. I'm throwing in an OEM suby resonator hahaha ill let you know how it sounds
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Old 02-06-2008, 01:13 AM   #4
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50 bucks installed at your local exhaust shop..you want a glasspack resonator.
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Old 02-06-2008, 07:48 AM   #5
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Quote:
Originally Posted by 96SubyImpreza View Post
I'm going the same way. My borla is ridiculously loud.. I'm throwing in an OEM suby resonator hahaha ill let you know how it sounds
I was thinking about that but I want to keep my stock pipe just in case. Let me know how it comes out.


Quote:
Originally Posted by imprexaRS03 View Post
50 bucks installed at your local exhaust shop..you want a glasspack resonator.
Will the glass pack hold up as long as the stromung itself. Also what size do you think I should get in terms of length and diameter.
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Old 02-06-2008, 02:33 PM   #6
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I love resonators. I have two in my catback...
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Old 02-06-2008, 05:55 PM   #7
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Quote:
Originally Posted by ZeppelinPie792 View Post
I love resonators. I have two in my catback...
Do you run a muffler too, or just the resonators?
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Old 02-06-2008, 06:09 PM   #8
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My muffler section basically is a resonator. The other is in my mid-pipe.

Blitz Nur Spec R
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Old 02-06-2008, 06:15 PM   #9
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Yeah. I'm about to go just with resonators myself. I'm keeping the factory resonator and going with a Hedman Hot Tip in place of the muffler.

So how does your car sound?
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Old 02-06-2008, 06:43 PM   #10
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Quote:
Originally Posted by mopartodd View Post
Yeah. I'm about to go just with resonators myself. I'm keeping the factory resonator and going with a Hedman Hot Tip in place of the muffler.

So how does your car sound?
Right now, like crap. In a week or two, a lot better.

This video doesn't 100% accurately portray it, but its something like that. It is the before video for my UEL's.

http://www.youtube.com/watch?v=2D0QZXzM5Go

Here is what it should sound like:

http://www.youtube.com/watch?v=Vrtfj...eature=related

Last edited by ZeppelinPie792; 02-06-2008 at 06:51 PM.
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Old 02-06-2008, 07:13 PM   #11
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Will the glass pack hold up as long as the stromung itself. Also what size do you think I should get in terms of length and diameter.[/quote]

Stromung is not using glass type insulator for their mufflers and resonators anymore, they started using a synthetic fiber based packing recently that they get from germany. I dont know anything about what it actually is but it is lighter than glass pack and the same volume resonator will eliminate at least 2 dB more according to Stromung. The larger the volume the more it outperforms glass. Im sure its pretty high quality stuff since I cant see Stromung using some crap. As for pipe diameter i know on NA cars it is crucial that you maintain the same diameter throughout the exhaust after the collector to maintain velocity... it may not be as critical with a turbo application but i think it would be better to match the pipe diameter to the rest of your exhaust than to have it larger or smaller on any engine. the longer the resonator the more it will quiet the sound in general... there are some physics about the specific frequency wave lengths matching the resonators but Stromung didn't seem to say that is something to consider when choosing a resonator. Give em a call, they are happy to answer ?'s.
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Old 02-07-2008, 03:18 AM   #12
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Quote:
Originally Posted by RaceFaceXC View Post
Will the glass pack hold up as long as the stromung itself. Also what size do you think I should get in terms of length and diameter.
Stromung is not using glass type insulator for their mufflers and resonators anymore, they started using a synthetic fiber based packing recently that they get from germany. I dont know anything about what it actually is but it is lighter than glass pack and the same volume resonator will eliminate at least 2 dB more according to Stromung. The larger the volume the more it outperforms glass. Im sure its pretty high quality stuff since I cant see Stromung using some crap. As for pipe diameter i know on NA cars it is crucial that you maintain the same diameter throughout the exhaust after the collector to maintain velocity... it may not be as critical with a turbo application but i think it would be better to match the pipe diameter to the rest of your exhaust than to have it larger or smaller on any engine. the longer the resonator the more it will quiet the sound in general... there are some physics about the specific frequency wave lengths matching the resonators but Stromung didn't seem to say that is something to consider when choosing a resonator. Give em a call, they are happy to answer ?'s.[/quote]

Thanks will give em a call.
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Old 04-09-2008, 09:02 PM   #13
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I'm getting a stromung single tip axleback installed on my legacy, with custom 2.25 inch piping catback, then will add eBay Borla UEL. Do you guys think i will need a resonator with this setup?
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Old 04-10-2008, 04:44 AM   #14
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resonator is a personal preference. if u hate it after a while, then get the resonator. try it out as is for a while then decide.
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Old 04-10-2008, 12:34 PM   #15
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resonator = muffler ...in its most basic form.

If you don't like the sound of the muffler, you do have the option of getting a different muffler.

If you like the sound, a resonator will quiet the sound further, as will a glass pack or any other muffler of sorts.
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Old 04-10-2008, 02:24 PM   #16
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I was just worried that it might be raspy without a resonator?
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Old 04-10-2008, 11:35 PM   #17
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evan55 - if you keep the OEm cat, you shouldnt have much/any rasp with the stromung catback.. if you go with a HFC you may get some. I got more than id like in terms or rasp, but im running a HFC and TWE headers so i wasnt suprised.
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Old 04-11-2008, 05:53 PM   #18
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i had my stromung on with the stock cat for almost 8 months. there was no raspiness or anything like that. it sounded amazing. even with the random tech cat, there is no raspiness. there is a little at start up, but nothing after it warms up.
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Old 04-11-2008, 06:07 PM   #19
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Quote:
Originally Posted by evan55 View Post
I was just worried that it might be raspy without a resonator?
It will depend on the muffler you run. If they're known to be rasphy, it will be. However, not all mufflers will be. You do have the freedom to pick and chose whatever you want. It's not like you have to buy a Subaru specific item. Any universal muffler, resonator, cat, or whatever will weld right in. You can build a full exhaust system using zero Subaru specific parts if you want. The header requires a little bit of intelegent fabrication, but everything after that is straight forward and easy. You can even swap in and out parts from an existing system, i.e. cut out stock cats and weld in a single high flow one or cut out current muffler and weld in another or cut out a section of piping and weld in a resonator. It really doesn't matter that much.

Enjoy whatever option you want. Just realize you do have full freedom over this and are not bound to any specific setup.
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