Sound Tube Question - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

LancePower · 05-06-2018, 12:10 PM

Does the OEM Sound Tube lock or snap into the firewall?

Or does just sorta lay in there?

Thanks.

Breadman · 05-06-2018, 12:19 PM

its a tube that connects to a connector that is in the hole in your firewall. i had mine plugged after the deleted but it fell out so i stopped caring.

norcalpb · 05-06-2018, 01:33 PM

It’s a loose rubber like lock for sure.

I put the sti sound changer in there and it seemed like it would fall out but it’s still in there.

Leonardo · 05-06-2018, 01:45 PM

I ran 2awg power wire through the hole.

Ultramaroon · 05-06-2018, 01:49 PM

I left it installed to keep the correct part mated against the seal. Then I plugged the hose just upstream at the elbow in the engine bay.

sly · 05-06-2018, 05:23 PM

You can plug the opening in the firewall with the plastic plug that goes in the glovebox cigarette lighter. It fits perfectly. I removed my tube and used the plastic plug to close the hole for the sound tube.

Ultramaroon · 05-06-2018, 06:10 PM

Quote:

Originally Posted by Leonardo

I ran 2awg power wire through the hole.

I tapered a wooden dowel and shoved it into the upstream fitting.

LancePower · 05-06-2018, 06:40 PM

Thanks, all.

I just had just installed TRD Intake and that last piece of the Sound Tube fell out during the process. I couldn't make it "snap" back into that rubber hole. So I was just making sure I wasn't missing something. But it sounds like it just sort of lays in there.

brzaapi · 05-06-2018, 06:52 PM

Yes, it just lays in there, inside the rubber grommet that is in the hole in the firewall. It does not snap in. It just slides through, so don't worry about it too much.

Tcoat · 05-06-2018, 07:36 PM

Quote:

Originally Posted by Ultramaroon

I tapered a wooden dowel and shoved it into the upstream fitting.

Ultramaroon · 05-06-2018, 07:49 PM

Quote:

Originally Posted by Tcoat

.

It was more of a press fit.

05-06-2018, 12:10 PM	#1
LancePower Senior Member Join Date: Aug 2016 Drives: 2020 BRZ tS Location: NJ Posts: 514 Thanks: 99 Thanked 193 Times in 120 Posts Mentioned: 4 Post(s)	Sound Tube Question Does the OEM Sound Tube lock or snap into the firewall? Or does just sorta lay in there? Thanks.

05-06-2018, 01:45 PM	#4
Leonardo Country Boy 4 Life Join Date: Jul 2012 Drives: 19' & 06' Ridgelines, 13' FR-S Location: EUGENE Posts: 5,228 Thanks: 6,719 Thanked 5,293 Times in 2,720 Posts Mentioned: 47 Post(s)	I ran 2awg power wire through the hole. __________________ I LIKE TIRES!

05-06-2018, 01:49 PM	#5
Ultramaroon not playing cards Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 32,394 Thanks: 53,054 Thanked 37,230 Times in 19,309 Posts Mentioned: 1118 Post(s)	I left it installed to keep the correct part mated against the seal. Then I plugged the hose just upstream at the elbow in the engine bay. __________________ service manuals

05-06-2018, 06:52 PM	#9
brzaapi CAR-AHOLIC Join Date: Sep 2013 Drives: 2018 BRZ Ts - CWP Location: Oklahoma City OK Posts: 655 Thanks: 283 Thanked 701 Times in 306 Posts Mentioned: 13 Post(s)	Yes, it just lays in there, inside the rubber grommet that is in the hole in the firewall. It does not snap in. It just slides through, so don't worry about it too much. __________________ Track Toy - 2018 BRZ Ts - CWP Daily: Audi TT RS DD/4WD - Colorado ZR2 Bison - Mallett Supercharger

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05-06-2018, 12:19 PM	#2
Breadman Senior Member Join Date: Jul 2017 Drives: 2017 BRZ w/PP Location: Pa Posts: 1,027 Thanks: 51 Thanked 303 Times in 225 Posts Mentioned: 3 Post(s)	its a tube that connects to a connector that is in the hole in your firewall. i had mine plugged after the deleted but it fell out so i stopped caring.

05-06-2018, 01:33 PM	#3
norcalpb Senior Member Join Date: Oct 2013 Drives: 2013 BRZ, 2023 Model 3 Location: SF Bay Area Posts: 2,348 Thanks: 1,258 Thanked 906 Times in 592 Posts Mentioned: 15 Post(s)	It’s a loose rubber like lock for sure. I put the sti sound changer in there and it seemed like it would fall out but it’s still in there.

05-06-2018, 05:23 PM	#6
sly Senior Member Join Date: Dec 2015 Drives: 2016 Cosworth 2.2 BRZ Location: TN Posts: 339 Thanks: 89 Thanked 204 Times in 127 Posts Mentioned: 10 Post(s)	You can plug the opening in the firewall with the plastic plug that goes in the glovebox cigarette lighter. It fits perfectly. I removed my tube and used the plastic plug to close the hole for the sound tube.

05-06-2018, 06:40 PM	#8
LancePower Senior Member Join Date: Aug 2016 Drives: 2020 BRZ tS Location: NJ Posts: 514 Thanks: 99 Thanked 193 Times in 120 Posts Mentioned: 4 Post(s)	Thanks, all. I just had just installed TRD Intake and that last piece of the Sound Tube fell out during the process. I couldn't make it "snap" back into that rubber hole. So I was just making sure I wasn't missing something. But it sounds like it just sort of lays in there.

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