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Old 09-25-2010, 12:38 PM   #1
prattcm
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Default 2006 2.5i exhaust

So, I've been thinking about getting some sort of exhaust for my 2.5i. However I don't have too much money. I want it to be a little louder, just not crazy loud. I have found a catback sti exhaust that I can get for $100, I was also thinking about a straight pipe. Anybody else have any ideas? I just want to get the best sound possible without sounding super ricer.
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Old 09-25-2010, 02:39 PM   #2
berylthemessiah
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i put a 05 wrx catback on my, i had the chamber in the midpipe deleted and a straight pipe wield in and it added a little bit more noise level to the exhaust. getting the pipe wield cost about 40$ and the catback was free so for the money i was happy
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Old 09-25-2010, 04:55 PM   #3
subieracer07
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magnaflow, stromung are the most popular. i got a fart can on mine and at 3k it sounds hondaish
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Old 09-28-2010, 05:56 AM   #4
silverstreakimpreza
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I've installed an 04 WRX STI axle back and eliminated the resornator the end results was good, had some what of a deepish rumble to it.
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Old 09-28-2010, 12:43 PM   #5
bmobs06
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i've got a 06 sti catback on mine but left the resonator on and it's still got a growl.
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Old 09-28-2010, 01:07 PM   #6
RaineMan
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A STI axle back will give you more growl without being too obnoxiously loud. I've got a WRX axleback on mine and while it did a lot to improve the looks it didn't do squat for the sound. I'm thinking about having a local shop lop the muffler off and install a universal magnaflow muffler with dual tips.
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Old 09-28-2010, 02:59 PM   #7
aleutdude
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I've got an '04 STI axleback on mine. Its got growl without being too loud for me. Its all relative though-"loud" and "sound" are different for everyone. Your best bet is to find a few other NA cars with exhausts and take a listen both inside and outside the car if you can.
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Old 09-28-2010, 03:21 PM   #8
Studmike02
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how would a turbo back exhaust sounds on the 2.5i?
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Old 09-28-2010, 03:25 PM   #9
biebs96
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I have wrx catback, resonator removed. Snorkus removed and k & n drop in filter.

Definately has a nice tone
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Old 09-28-2010, 03:53 PM   #10
RaineMan
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Quote:
Originally Posted by Studmike02 View Post
how would a turbo back exhaust sounds on the 2.5i?
Let me know when you figure out how to mount a TBE on a NA car.
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Old 09-28-2010, 03:54 PM   #11
Studmike02
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Quote:
Originally Posted by RaineMan View Post
Let me know when you figure out how to mount a TBE on a NA car.
i have the 06 2.5i now

getting a 06 wrx oem turboback exhaust, would it work?
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Old 09-28-2010, 04:02 PM   #12
RaineMan
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Quote:
Originally Posted by Studmike02 View Post
i have the 06 2.5i now

getting a 06 wrx oem turboback exhaust, would it work?

OK OK OK... I went over your head.

You can't mount a turboback exhaust on our cars because we don't have a turbo. The front portion of the exhaust is completely different.

What you can use is the axleback section... which will bolt right up. It will look lots better, but the sound won't change any. I have a WRX axleback on mine.

Getting the TBE is fine... but you are only going to be able to use the last section of it (what the muffler is attached to).
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Old 09-28-2010, 04:05 PM   #13
Studmike02
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Quote:
Originally Posted by RaineMan View Post
OK OK OK... I went over your head.

You can't mount a turboback exhaust on our cars because we don't have a turbo. The front portion of the exhaust is completely different.

What you can use is the axleback section... which will bolt right up. It will look lots better, but the sound won't change any. I have a WRX axleback on mine.

Getting the TBE is fine... but you are only going to be able to use the last section of it (what the muffler is attached to).
thats what i thought haha, you made me overthink.

youre talking about this last piece

http://www.google.com/imgres?imgurl=...w=1280&bih=713

correct?
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Old 09-28-2010, 04:09 PM   #14
RaineMan
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Yes, that is the axleback.
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Old 09-28-2010, 04:10 PM   #15
Studmike02
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Quote:
Originally Posted by RaineMan View Post
Yes, that is the axleback.
on a rating how easy is it to just bolt it up ow would i need to go to a shop and have them weld in the angle to be able to use the whole catback?
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Old 09-28-2010, 04:22 PM   #16
RaineMan
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You don't want to use the whole thing. It requires cutting and rotating the flange and a bunch of other crap. You aren't going to see any significant gains swapping to a WRX cat-back and the sound won't change. It's just for looks.
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Old 09-28-2010, 05:15 PM   #17
Studmike02
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Getting the axle back alone and taking it in to midday for installation.
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Old 09-28-2010, 05:48 PM   #18
prattcm
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Thanks for all the input. So will I just be able to bolt the axle back on or will I need to do any other modifications?
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Old 09-28-2010, 06:39 PM   #19
gmazz92
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can someone post a video of their exhaust on here because I'm looking to get a better sounding exhaust for my 07 2.5i and I want to hear it first.
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Old 09-29-2010, 01:42 PM   #20
RaineMan
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Quote:
Originally Posted by prattcm View Post
Thanks for all the input. So will I just be able to bolt the axle back on or will I need to do any other modifications?
2 bolts and a new gasket... the axle-back is a simple install.
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Old 09-29-2010, 01:56 PM   #21
Studmike02
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how easy would it to be to install a wrx spt axleback? is it the same as the oem wrx axleback?
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Old 09-29-2010, 01:56 PM   #22
Studmike02
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Quote:
Originally Posted by RaineMan View Post
2 bolts and a new gasket... the axle-back is a simple install.
a new gasket available at a general auto retainer store? (autozone, pepboys)
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Old 09-29-2010, 04:04 PM   #23
RaineMan
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A good exhaust shop should have gaskets... you can also try an auto parts store or the dealer. I got mine from the dealer... went to an auto parts store first and the guy behind the counter looked at me like I was from Mars.

I took my axle back to the dealer and set it on the parts counter... pointed to the flange that bolts to the rest of the exhaust and said "I need the gasket and bolts for that."

Sometimes you just have to physically show the parts guy what you need.
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Old 10-01-2010, 11:32 PM   #24
silverstreakimpreza
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Keep the STI exhaust if equiped and fab an electronic cut-off valve and you will have the best of both worlds. Stock on normal days, and the rumble when you pull of to a ricer.................
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Old 10-02-2010, 06:50 AM   #25
J-Chow
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