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Old 12-06-2010, 11:47 PM   #1
skatin707
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Default Exhaust question...

So I saw the custom exhaust thread and I figured I would ask. I have a 3" cat less exhaust, turbo back, as well as a cat less up pipe on my 02 wrx. I'm getting some rasp that I'd love to get rid of, as well as make it somewhat more quiet.

I'm researching resonators and what not, but I cannot find much info for our WRX's.

So I'm looking for personal experiences. What have you guys done to reduce rasp as well as tone down the volume of your WRX exhaust?
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Old 12-07-2010, 11:31 AM   #2
bluemk3
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a three inch glass pack somewhere in the middle of the cat back can cut down on the rasp. i did this on several cat backs that i have done and it does cut down on the rasp and the volume without constricting flow and making it sound bad. i would however suggest that if you do it. DO NOT get a cheap auto zone one. flowtech makes a higher quality model that seems to have nicer welds and is a bit more long lasting. its just an idea. but it has worked for me
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Old 12-07-2010, 12:56 PM   #3
skatin707
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Where can I acquire one of these and which model would you recommend?

Thanks for your reply!
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Old 12-07-2010, 04:05 PM   #4
bluemk3
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this is for the flowtech. you will have to modify this one slightly (cut of the flange and other end) they are nice however

http://www.poweredbyford.com/store/i...oducts_id=5094


this one i used because its a bit cheaper and true 3 inch straight through. i think this one would be best for your application
http://www.performanceexhaustplus.co...-straight.html

also keep in mind that since these mufflers are packed with fiber glass; the farther away from the heat source (engine) the better life you will get. anywere in the cat back should be fine for quite some time but closest to the muffler the more sound deadening and the better longevity you will get. id use the gator model for your use. its hard to find a true 3 inch resonator like that and they do hold up well to rust
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Old 12-07-2010, 04:20 PM   #5
skatin707
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Thanks for the info, that's a heck of a deal. I'm going to go to my local exhaust shop and see if they have anything worth while. I like supporting his business.

Are there any brands I should stay away from? Any I should look for (other than the above mentioned)?

As far as heat source, would the mid pipe be a decent place? There is a spot that looks like a resonator, but is really just a wider section.
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Old 12-07-2010, 10:28 PM   #6
bluemk3
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well i guess they all will work but it seems to me that the ones at auto zone cherry bomb brand and other ones like that seem to burn out. the mid pipe is closer than id go staying away from the cat and headers would be a good idea if you dont want the fiber glass to get burnt out. but its your call thrush is half decent and i think napa stocks them.
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Old 12-07-2010, 10:39 PM   #7
skatin707
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I'll take a look. I wonder where else I could put it. It seems like that's the only big enough section.
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