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Old 07-17-2006, 10:49 AM   #1
ForesterCarlin
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Impreza GC8 Catless pipe too loud, suggestions?

I have a 2000 2.5 RS, i have a Cobb intake, and 2.25" Stromung exhaust....Saturday I put in my catless pipe but it is way too loud to drive around on, anyone know of anything quieter that might still give performance over the stock cat pipe.
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Old 07-17-2006, 10:55 AM   #2
cueball89
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A high flow cat. A header would probably help alot too.
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Old 07-17-2006, 11:06 AM   #3
ForesterCarlin
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I am toying with the idea of OBX header and cat, does anyone have experience with the sound levels on that system?
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Old 07-17-2006, 11:25 AM   #4
cueball89
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I dont think obx has a cat. Its just a hollow bulge iirc.
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Old 07-17-2006, 11:35 AM   #5
ForesterCarlin
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OBX does make cats so I assumed that the bulge was a cat...I am gonna continue looking into that.

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Old 07-17-2006, 01:09 PM   #6
NFJ79
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Get a resonator welded in to the mid-pipe. That should help out a lot.
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Old 07-17-2006, 01:21 PM   #7
impr25rs
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Quote:
Originally Posted by NFJ79
Get a resonator welded in to the mid-pipe. That should help out a lot.
So True

Actually the OBX header and "cat" is not a cat, but a really small resonator. They do make cats and I have read a few posts on people getting an exhaust shop to put a cat in the resonators place.
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Old 07-17-2006, 01:43 PM   #8
Skidd
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I have the OBX header and resonator in my car with an, as yet still stock, catback. The sound is just fine. Not loud at all. Infact, it's a pretty good sound. But.. I'm planning to change out my catback for something a bit fatter in the future.
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Old 07-18-2006, 05:56 AM   #9
X4 SRT
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Have a resonator put into the midpipe on your stromung. I had the same situation you have, except that I liked it, and the only reason I put the resonator in is because I got pulled over for a loud exhaust, and had to get it fixed.
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