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08-18-2014, 12:04 PM | #15 |
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Any evidence of either? I haven't noticed any change. I would think the smaller compressible volume in the, now short, sound tube, would aid air flow going to the engine. ie the amount of air in the sound tube is smaller, and less compressible, thus having less impact on the flow to the engine.
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08-18-2014, 12:33 PM | #16 |
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Does this make a significant difference in noise? I've been thinking about doing this, specifically for highway driving. The cabin noise just seems to be brutal at anything about 70+.
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08-18-2014, 12:38 PM | #17 |
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08-18-2014, 01:09 PM | #18 |
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08-18-2014, 02:55 PM | #19 |
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The motor is not loud on the highway, its all road noise. I wasted 8 bucks and an hour's time with this "mod". Trust me, 9 out of 10 who try this will end up switching back. The motor sounds more like a Porsche with the sound tube. Without it, its just generic Subaru. The engineers put it in for a reason.
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08-18-2014, 02:58 PM | #20 |
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Personally, I'd rather not hear the engine unless I'm pushing it. But to each their own.
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08-18-2014, 05:59 PM | #21 | |
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08-18-2014, 06:15 PM | #22 |
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I messed around with the TRD sound changer in the past. With the noise completely blocked the car does sound very generic and puny.
The completely open tube sounded dumb also. Nothing feels more embarrassing than hearing a loud roar in the cabin, but you're car is barely accelerating. Ended up selling the TRD Sound Changer and put the stock pipe back on. IMO the stock pipe sounds perfectly balanced. The only reason for this mod is if you absolutely need extra room under the hood. I think plugging the hole will give you just as good of results for 10 seconds of your time and zero cost.
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08-18-2014, 06:18 PM | #23 |
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Anyone considered cutting the end off the OEM sound tube, leaving the small flange, so that it and the metal liner, stay in the rubber tube, to keep it from collapsing? I think I'll cut mine, and try it, probably not an issue anyway, but it would help retain the shape.
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08-18-2014, 07:09 PM | #24 | ||
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08-18-2014, 07:20 PM | #25 |
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Could take a piece of 1 1/4" sched. 40 PVC, and have it turned down, to 1.590", leaving a bit of a flange to keep it from going all the way in. I measure my oem piece at 1.590", and the pvc would be 1.660" OD.
I used to have that "go back to stock" mentality too, then I did shaved handles, emblems, suicide doors, frenched antenna, split tailgate, cut the roof out, etc., to my Ranger, and I got over it Done, just needs some final sanding, and it should go in tomorrow. Last edited by Gunman; 08-18-2014 at 08:38 PM. |
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08-19-2014, 12:56 PM | #27 |
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Funny how people will argue about this topic... I say that folks should try this out in some form or fashion just to see what difference it makes. You may like it or may not, but it is a big enough difference to justify seeing what your own preference is.
I personally think the car is more refined without the sound being pumped into the cabin; however, I also have my Perrin exhaust to listen to. With an OEM exhaust you may find you desire the need for some sound. So just try it!
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08-19-2014, 02:09 PM | #28 | |
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