Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

(Suggestions for) the QUIETEST turboback combo?

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Old Sep 11, 2008 | 09:42 PM
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(Suggestions for) the QUIETEST turboback combo?

well, i have crucial racing tbe and its pretty loud...got a fix it ticket on turk and jones (tenderloin in sf) of all places. and it gets annoying on freeways cruising at 3k rpm.

i like my catted downpipe so i'm looking for a trade or buying a different catback. changing just the catback will be alright or would it be the whole turbo back set up.

i havnt heard too many turbobacks on subies, i would guess borla hush is one of the quiet ones but is there one without dualtips? i think xr1?

input will be helpful, thanks.
Old Sep 11, 2008 | 09:49 PM
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my friend has this turboback from Hitech mufflers, he would sell it i bet..

quietest 3" i have ever heard... i mean it's quieter than a hush.. it makes the hush look like a Blitz nur spec r...

with a catless dp.. it as a cat in the cbe tho..
Old Sep 12, 2008 | 03:11 PM
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I too would be interested in some recommendations for a quiet or semi-quiet tbe, if anyone has any thoughts.
Old Sep 12, 2008 | 03:14 PM
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I have the borla hush with a catted downpipe. It's quiet and does not get unwanted attention because it does not look flashy or anything. Yet it still has a nice deep growl to it and sounds pretty nice when you get on it.
Old Sep 12, 2008 | 08:00 PM
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quiet tbe

K'SAI all the way!
Old Sep 12, 2008 | 08:04 PM
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Originally Posted by jinorazi

i havnt heard too many turbobacks on subies, i would guess borla hush is one of the quiet ones but is there one without dualtips?
u could always try the fujitsubo catbacks (us spec). they're pretty quiet and they are angled like N1 exhausts. Or an Apexi WS sport catback. Or the Greddy SP2.

I have the jdm hks hi power silent version mated to the jdm hks catted dp and it's as quiet as the borla hush. It looks like a regular hi power but is all stainless steel.

Last edited by TurnWRX; Sep 12, 2008 at 08:06 PM.
Old Sep 12, 2008 | 08:10 PM
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The Greddy Evo 2 is a single tip and it is relatively quite.
Old Sep 14, 2008 | 03:42 PM
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The Greddy Evo 2 and Borla Hush are two of the quietest I have heard. The K'sai catted turboback is also about the same.

You could just weld in a resonator into your current system that should bring the sound down a fair amount.

Mike
Old Sep 15, 2008 | 04:55 AM
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Another aspect to think about is the appearance of the exhaust tip(s). Even though I usually hear a modified Subaru flat four before I see it, I think that one of the first things that law enforcement notices when they pull up behind an import car is the exhaust tip configuration. A big 4" stainless/titanium exhaust tip is the first thing I notice on any import car when I drive up behind one.

Obviously, a big straight-through catback is about as close as you're gonna get to zero flow restriction and still run a muffler, but it also gets you added (and sometimes unwanted) attention.
Old Sep 15, 2008 | 11:11 AM
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Originally Posted by GST Motorsports
The Greddy Evo 2 and Borla Hush are two of the quietest I have heard. The K'sai catted turboback is also about the same.

You could just weld in a resonator into your current system that should bring the sound down a fair amount.

Mike
thats what i was thinking, i will look into that. i really like the generic look of my exhaust. thanks for the input, i will continue to look.
Old Sep 15, 2008 | 04:21 PM
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Originally Posted by Wingless Wonder
Another aspect to think about is the appearance of the exhaust tip(s). Even though I usually hear a modified Subaru flat four before I see it, I think that one of the first things that law enforcement notices when they pull up behind an import car is the exhaust tip configuration. A big 4" stainless/titanium exhaust tip is the first thing I notice on any import car when I drive up behind one.

Obviously, a big straight-through catback is about as close as you're gonna get to zero flow restriction and still run a muffler, but it also gets you added (and sometimes unwanted) attention.
x2 , everytime I've been questioned by the cops & they go peep the muffler, they end up ignoring because it isnt what fits the profile of what they want (melon shooter) in order to levy some sort of pennance for mods.
Old Sep 18, 2008 | 12:17 AM
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come on jin you know you like my hush haha, i sometimes wish it were louder
Old Sep 20, 2008 | 01:15 PM
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i'm running with silencer for now, not because i dont want tickets but just because the ride is sooooo much better without a blistering loudness coming from the car, though it sounds like my car is farting, i can actually push my car a little bit without having to worry about cops being around the block.
Old Sep 24, 2008 | 07:42 PM
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The TurboXS turboback with high flow cat and standard TurboXS muffler is fairly quiet, Ive had it for 4 years now and havent had any trouble with the law. It looks nice too - it tucks up nicely under the bumper:

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Old Sep 25, 2008 | 01:45 AM
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Originally Posted by tony1w
The Greddy Evo 2 is a single tip and it is relatively quite.
I always liked the sound of Greddy Evo two catback.
The construction is great quality it just isn't that loud.
I'd go with that but the best of luck with whatever you
end up with.



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